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Very Fast Death Factor - Periodic Table of Videos

Video vocabulary

completely

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US / kəmˈpli:tli /

UK / kəmˈpliːtli /

A1
  • adverb
  • In every way or as much as possible

electrical

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US / ɪˈlektrɪkl /

UK / ɪˈlektrɪkl /

A2
  • adjecitve
  • Related or connected to electricity

electron

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US / ɪˈlektrɒn /

UK / ɪˈlektrɑ:n /

B2
  • noun
  • A negatively charged particle

join

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US / dʒɔɪn /

UK / dʒɔɪn /

A1
  • verb
  • To bring something close to another, to become one
  • To become a member of
  • To participate in an activity with others

nonetheless

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US / ˌnʌnðəˈles /

UK / ˌnʌnðəˈlɛs /

B1
  • adverb
  • In spite of that; nevertheless

put

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US / pʊt /

UK / pʊt /

A1
  • phrasal verb
  • to make a light stop shining by pressing or moving a switch
  • verb
  • To move or place a thing in a particular position
  • To rate something in importance or value
  • To write or say something in a certain manner

trigger

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US / 'trɪɡə(r) /

UK / ˈtrɪɡɚ /

B1
  • noun
  • Lever on a gun that you pull to fire
  • Device that starts a process
  • verb
  • To start a process off e.g. a memory

two

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US / tu: /

UK / tu /

A1
  • number
  • 2

and

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US / ənd /

UK / ənd, ən,ænd /

A1
  • conjunction
  • Used to refer to two or more things
  • Plus; in addition; on top of that
  • Used to introduce an action that follows another

back

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US / bæk /

UK / bæk /

A1
  • adjecitve
  • Farthest from the front e.g. in a classroom
  • adverb
  • Have returned to a place you were before
  • noun
  • The part of a chair that the upper body leans upon
  • Location at the rear of something
  • The reverse of side something
  • Area on the rear of your body
  • verb
  • To bet money on something
  • To go backwards in a car
  • To support and encourage someone or some cause

biological

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US / ˌbaɪəˈlɒdʒɪkl /

UK / ˌbaɪəˈlɑdʒɪkəl /

B1
  • adjecitve
  • Being related to life and living things

degrade

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US / dɪ'ɡreɪd /

UK / dɪˈɡred /

B2
  • verb
  • To reduce in amount or strength
  • To treat something poorly or without respect

lot

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US / lɒt /

UK / lɑt /

A1
  • noun
  • What happens to a person in life from chance; fate
  • A group of people seen together
  • Item for sale at an auction
  • Small area of land used for a purpose e.g. parking

munch

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US / mʌntʃ /

UK / mʌntʃ /

B2
  • noun
  • Sound made when eating something quickly or loudly
  • verb
  • To eat something quickly or loudly

paralyse

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US / ˈpærəlaɪz /

UK / ˈpærəˌlaɪz /

B1
  • verb
  • To be unable to move from loss of muscle function
  • To cause to be powerless and unable to function

call

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US / kɔ:l /

UK / kɔl /

A1
  • noun
  • A order or request for action
  • The sound an animal makes, often when in danger
  • A correct prediction, e.g. a decision in a game
  • A short visit to a place or person
  • A decision by a referee or umpire in a game
  • verb
  • To make a request or order for action
  • (Animal) to make sounds to warn of danger
  • To announce the date of an election
  • To make a judgment about something
  • To give someone or something a name
  • To guess in advance the result or outcome
  • To visit a place or person for a short time
  • To phone someone
  • To speak, announce or shout in a loud voice

where

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US / hwɛə /

UK / hwɛr, wɛr /

A1
  • conjunction
  • At or in the place which
  • In whatever place
  • pronoun
  • Word you use to ask the location of something

drink

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US / drɪŋk /

UK / drɪŋk /

A1
  • noun
  • A liquid that you put in your mouth
  • verb
  • To put water in your body through your mouth

name

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US / neɪm /

UK / nem /

A1
  • noun
  • What something or someone is called
  • verb
  • To state what someone is called, e.g. John

rather

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US / 'rɑ:ðə(r) /

UK / ˈræðɚ, ˈrɑðɚ /

A1
  • adverb
  • Somewhat; fairly; not that much

something

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US / ˈsʌmθɪŋ /

UK / ˈsʌmθɪŋ /

A1
  • adverb
  • In some degree or measure
  • noun
  • a person or thing of some value or consequence
  • pronoun
  • Thing that is not yet known or named
  • Approximately

unstable

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US / ʌnˈsteɪbl /

UK / ʌnˈstebəl /

B1
  • adjecitve
  • (Of a chair, etc.) likely to move, fall etc.
  • Tending to overreact emotionally; not balanced

along

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US / əˈlɒŋ /

UK / əˈlɔ:ŋ /

A1
  • adverb
  • As a companion; taken with someone
  • preposition
  • At a point on a line

from

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US / frəm /

UK / frʌm, frɑm,frəm /

A1
  • preposition
  • Starting at a particular place, time or level

form

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US / fɔ:m /

UK / fɔrm /

A1
  • noun
  • Sports team or person's current winning record
  • Document you complete when making an application
  • Visible shape or style; type; kind
  • verb
  • To organize something such as a club or group
  • To develop; to come into a shape or substance
  • To make something into a particular shape

plug

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US / plʌg /

UK / plʌɡ /

B1
  • noun
  • Wood, rubber or metal used to block a hole
  • Thing on a wire to connect to electricity supply
  • A promotion of a product
  • verb
  • To use an object to block a hole
  • To promote or advertise a product

out

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US / aʊt /

UK / aʊt /

A1
  • adverb
  • No longer stylish (e.g. fashion)
  • Away from home, business, or the usual place
  • In a direction/movement away from inside or center
  • noun
  • Act when a batter cannot continue playing
  • verb
  • To tell people a secret

over

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US / 'əʊvə(r) /

UK / ˈovɚ /

A1
  • adverb
  • Finished; no longer happening
  • Towards the ground/away from a standing position
  • noun
  • A set of six consecutive balls bowled in cricket
  • other
  • Finished
  • preposition
  • Showing the relation when a thing is above another
  • On or covering something
  • Above or across something
  • More than you need
  • From one side to the other
  • In the direction of; toward

bloom

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US / blu:m /

UK / blum /

B2
  • noun
  • Period of beauty, strength or freshness
  • verb
  • To flower; to produce flowers
  • To achieve an ideal state of beauty and strength

any

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US / 'enɪ /

UK / ˈɛni /

A1
  • adjecitve
  • One, or some, no matter which
  • pronoun
  • One (thing) of many; some

come

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US / kʌm /

UK / kʌm /

A1
  • verb
  • To arrive at a place
  • (Of mail) to be delivered
  • To move toward someone; go with someone
  • To reach a certain point or state

distance

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US / 'dɪstəns /

UK / ˈdɪstəns /

A2
  • noun
  • Lack of friendliness toward another person
  • Amount of space between two places or things
  • verb
  • To make it clear that you are not involved

think

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US / θɪŋk /

UK / θɪŋk /

A1
  • verb
  • To have an idea about something without certainty
  • To have an idea, opinion or belief about something

bird

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US / bɜ:d /

UK / bɜ:rd /

A1
  • noun
  • Animal with feathers that uses wings to fly

algal

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US / 'ælɡəl /

UK / 'ælɡəl /

B2
  • adjecitve
  • Concerning algae

sometimes

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US / ˈsʌmtaɪmz /

UK / ˈsʌmˌtaɪmz /

A1
  • adverb
  • Only at certain times; occasionally

bottom

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US / 'bɒtəm /

UK / ˈbɑtəm /

A2
  • adjecitve
  • Concerning the part under something, e.g. a vase
  • noun
  • The part of your body you sit on
  • Lowest position, often in a company or contest
  • Lowest part of something; part on which it rests
  • Lowest level, part or point of an object
  • The part under something, e.g. a vase
  • verb
  • To hit the lowest part of something

clever

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US / 'klevə(r) /

UK / ˈklɛvɚ /

A1
  • adjecitve
  • Funny in a way that shows intelligence
  • Showing intelligence; quick to understand or learn

seconds

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US / 'sekəndz /

UK / 'sekəndz /

A1
  • other
  • Units of time; one sixtieth of a minute
  • Short periods of time you wait for someone
  • verb
  • To agree to support a proposal at a meeting

catch

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US / kætʃ /

UK / kætʃ, kɛtʃ /

A1
  • noun
  • Amount of something that has been caught
  • Trick or something trying to deceive
  • verb
  • To stop something flying and hold it
  • To stop something and not let it go, e.g. animals
  • To get sick or get a disease from someone else
  • To find someone to do something, a task
  • To get stuck on or in something
  • To be trapped so you can’t escape
  • To be able to understand what someone is saying

tell

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US / tel /

UK / tɛl /

A1
  • verb
  • To (strongly) advise a person to do something
  • To be able to guess
  • To say or communicate information to someone
  • To inform, but without speaking; indicate
  • To have a negative effect on someone
  • To order someone to do something; command
  • To recognize something based on certain signs
  • To report something to an authority
  • To explain something or teach someone something

essentially

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US / ɪˈsenʃəli /

UK / ɪˈsenʃəli /

A2
  • adverb
  • Basically; (said when stating the basic facts)

enough

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US / ɪˈnʌf /

UK / ɪˈnʌf /

A1
  • adjecitve
  • Sufficient to answer the need
  • adverb
  • To a satisfactory degree
  • pronoun
  • Equal to what is needed; as much as required
  • Adequate number or amount

find

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US / faɪnd /

UK / faɪnd /

A1
  • noun
  • Object discovered by chance
  • Things that have been discovered from searching
  • verb
  • To become aware of something that is happening
  • To discover or meet by chance
  • To decide if someone is guilty of a crime, or not
  • To learn through study, research, or effort
  • To discover something by looking for it

isolated

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US / ˈaɪsəleɪtɪd /

UK / ˈaɪsəˌletɪd /

B1
  • verb
  • To identify, consider, or deal with separately
  • To keep in a place or situation apart from others
  • To separate something from another substance

mean

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US / mi:n /

UK / min /

A1
  • adjecitve
  • Being good at
  • Nasty; unkind
  • Not liking to spend money; cheap; stingy
  • noun
  • Average of a set of numbers
  • verb
  • To express a particular idea or thought
  • To intend to do something in particular
  • To have a particular meaning or value

neurodegenerative

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US / ˌnju:rəʊdɪ'dʒenərətɪv /

UK / ˌnju:roʊdɪ'dʒenərətɪv /

A1
  • adjecitve

neurotransmitter

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US / ˈnjʊərəʊtrænzmɪtə(r) /

UK / ˌnʊroˈtrænsmɪtɚ, -ˈtrænz-, ˌnjʊr- /

A1
  • noun
  • Chemical released by nerves that boost signals within the body

oxygen

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US / 'ɒksɪdʒən /

UK / ˈɑksɪdʒən /

B1
  • noun
  • A gas in the air that we need to breathe

about

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US / ə'baʊt /

UK / əˈbaʊt /

A1
  • adverb
  • To be ready to; going to
  • Nearly; approximately; roughly
  • Near; next to; close to
  • In every direction; in the area of
  • preposition
  • Concerning or of (a topic)

again

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US / ə'ɡen /

UK / əˈɡɛn /

A1
  • adverb
  • One more time, once more

like

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US / laɪk /

UK / laɪk /

A1
  • adjecitve
  • Being equal in status or kind to something else
  • Similar; the same
  • adverb
  • For example
  • preposition
  • Used as a filler; used to ad emphasis
  • In a way similar to the way something is done
  • Such as; for example
  • verb
  • To want to
  • To find something pleasing; to prefer something

people

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US / 'pi:pl /

UK / ˈpipəl /

A1
  • noun
  • Persons sharing culture, country, background, etc.
  • Men, Women, Children

that

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US / ðæt /

UK / ðæt, ðət /

A1
  • adjecitve
  • The person or thing being talked about
  • Used to identify something both the speakers know
  • adverb
  • Used to reinforce adjectives and adverbs
  • To such a degree
  • conjunction
  • Used to connect a noun clause
  • Used to introduce an adverbial clause
  • Used to introduce a noun clause
  • determiner
  • Used as a noun to refer to something
  • pronoun
  • Referring an object far away
  • Used to refer to the relative pronoun ‘which’

what

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US / wɒt /

UK / hwɑt, hwʌt, wɔt, wʌt,hwət, wət /

A1
  • pronoun
  • Thing or things that; the same kind as
  • Used to emphasize something you are about to say
  • adjecitve
  • Used to refer to a particular amount, or number
  • Used to place emphasis on a particular quality
  • adverb
  • To a certain degree
  • determiner
  • Question words used for asking for information
  • exclamation
  • Used to express excitement, shock, or surprise
  • Used to ask people to repeat something they said

disable

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US / dɪs'eɪbl /

UK / dɪsˈebəl /

A2
  • verb
  • To cause something to be unable to act normally

get

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US / ɡet /

UK / ɡɛt /

A1
  • verb
  • To become affected by illness or disease
  • To begin to feel or understand an emotion or idea
  • To send or bring someone or something home, etc.
  • To go somewhere to obtain something
  • To (cause to) do a particular thing
  • To obtain, receive or be given something
  • To currently have
  • To prepare for use
  • To understand something being said or read

first

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US / fɜ:st /

UK / fɚst /

A1
  • adjecitve
  • 1st; Coming before all others in time or place
  • noun
  • Something that has not happened before
  • Position of the winner of a competition

rename

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US / ˌri:ˈneɪm /

UK / ˌriːˈneɪm /

B1
  • verb
  • To change the name of something or someone

particularly

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US / pəˈtikjuləli /

UK / pɚˈtɪkjələli, pəˈtɪk- /

A2
  • adverb
  • Specially; more than others

down

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US / daʊn /

UK / daʊn /

A1
  • adjecitve
  • Being sad, sick, or unhappy
  • Not operating, working, or functioning as expected
  • adverb
  • In a sitting or lying position
  • Towards or on the ground, floor, or bottom
  • Written or copied onto a piece of paper or book
  • noun
  • A period of play in American Football
  • The soft, smooth hairs that cover a bird's body
  • preposition
  • Along something's path, course, or direction
  • Going from a higher position to a lower position
  • verb
  • To eat or drink very quickly and without stopping

then

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US / ðen /

UK / ðɛn /

A1
  • adverb
  • A time that is not now
  • Following another thing in time or arrangement
  • Following on reasonably from what was just stated
  • At that time, not now

slowly

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US / ˈsləʊli /

UK / ˈsloʊli /

A1
  • adverb
  • In an unhurried or not speedy manner

activity

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US / æk'tɪvətɪ /

UK / ækˈtɪvɪti /

A1
  • noun
  • An action or task, e.g. sports, washing clothes

rabbit

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US / ˈræbɪt /

UK / ˈræbɪt /

A2
  • noun
  • Type of small animal with long ears and four legs

take

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US / teɪk /

UK / tek /

A1
  • noun
  • Filming of a single scene for TV or the movies
  • verb
  • To accept something that is offered
  • To use a method of traveling, e.g. a bus or train
  • To use a camera to make (a photo)
  • To pick up something and go away with it
  • To study a subject in school
  • To attempt to pass (an exam)
  • To require a certain amount of time, money, space

death

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US / deθ /

UK / dɛθ /

A2
  • noun
  • When someone dies; the end of life

move

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US / mu:v /

UK / muv /

A1
  • noun
  • Act of moving a playing piece in chess, etc.
  • An action; doing something
  • Step taken to achieve a goal
  • verb
  • To cause someone to have certain emotions
  • To cause something to change to a different place
  • To change where people live or a business operates
  • To take action to do or achieve something

useful

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US / ˈju:sfl /

UK / ˈjusfəl /

A1
  • adjecitve
  • That can help with a particular task

pretty

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US / 'prɪtɪ /

UK / ˈprɪti /

A1
  • adjecitve
  • Being attractive to the eye in a simple way
  • adverb
  • Very; to a great degree

reactivity

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US / ˌriːækˈtɪvəti /

UK / ˌriːækˈtɪvəti /

B1
  • noun
  • Ready susceptibility to chemical change

bit

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US / bɪt /

UK / bɪt /

A1
  • noun
  • Device put in a horse's mouth to control it
  • Small piece of something
  • verb
  • (E.g. of fish) to take bait and be caught

algae

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US / ˈældʒi: /

UK / ˈældʒi /

B2
  • noun
  • Green organisms that live in still water

atom

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US / 'ætəm /

UK / ˈætəm /

B1
  • noun
  • Smallest bit that matter can be broken down into

they

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US / ðeɪ /

UK / ðe /

A1
  • pronoun
  • Two or more people, animals, or things

toxin

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US / ˈtɒksɪn /

UK / ˈtɑ:ksɪn /

B1
  • noun
  • Any poisonous substance

very

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US / 'verɪ /

UK / ˈvɛri /

A1
  • adjecitve
  • Concerning a large degree or amount
  • adverb
  • A lot; much; many
  • Used to stress or emphasize a noun

all

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US / ɔ:l /

UK / ɔl /

A1
  • adverb
  • Completely; totally
  • determiner
  • Being every one of something
  • pronoun
  • 100% of something; the complete amount

everyone

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US / ˈevriwʌn /

UK / ˈɛvriˌwʌn /

A1
  • pronoun
  • Every person; everybody

its

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US / ɪts /

UK / ɪts /

A1
  • adjecitve
  • Referring to or belonging to ‘it’
  • determiner
  • Of something; belonging or related to something
  • other
  • Possessive form of “it”

fast

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US / fɑ:st /

UK / fæst /

A1
  • adjecitve
  • In a way that is difficult to move or change
  • Moving or able to move quickly
  • Showing time that is later than the actual time
  • adverb
  • With a great deal of speed
  • noun
  • Period of time when a person chooses not to eat
  • verb
  • To refuse food for a long time

receptor

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US / rɪˈseptə(r) /

UK / rɪˈseptər /

B2
  • noun
  • A nerve ending that changes stimuli into impulses

who

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US / hu: /

UK / hu /

A1
  • pronoun
  • Which person
  • Used to introduce information about people

tin

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US / tɪn /

UK / tɪn /

A2
  • noun
  • Metal container used for storing e.g. food
  • Metal that cans are often made from
  • Soft, shiny, white blue metal, with various uses

work

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US / wɜ:k /

UK / wɚk /

A1
  • adjecitve
  • Activity completed in order to make money
  • noun
  • The product of some artistic or literary endeavor
  • Everything created by an author, artist, musician
  • Activity you do in order to make money
  • Place of employment
  • Final product or result of a some labor or effort
  • verb
  • To bring into a specific state of success
  • To be functioning properly, e.g. a car
  • To do your job in your company or workplace
  • To make an effort to do something
  • To operate a machine or device

destroy

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US / dɪ'strɔɪ /

UK / dɪˈstrɔɪ /

A2
  • verb
  • To damage so badly that something no longer exists
  • To defeat someone or something easily
  • To kill a sick or unwanted animal

hour

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US / 'aʊə(r) /

UK / aʊr /

A1
  • noun
  • 60 minutes
  • Particular time of the day
  • Fixed, regularly occurring time

light

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US / laɪt /

UK / laɪt /

A1
  • adjecitve
  • Being bright making it easy to see; not dark
  • Being pale and lacking darkness of color
  • Not heavy; weighing only a little
  • adverb
  • Carrying few bags when traveling
  • noun
  • A source of energy that makes a room or area bright
  • Way in which something or someone is understood
  • verb
  • To cause something to burn; put a burning match to
  • To provide a way to see ahead

nitrogen

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US / ˈnaɪtrədʒən /

UK / ˈnaɪtrədʒən /

B2
  • noun
  • A colorless chemical element without a smell

molecule

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US / ˈmɒlɪkju:l /

UK / ˈmɑlɪˌkjul /

B2
  • noun
  • Two or more atoms chemically combined

stuff

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US / stʌf /

UK / stʌf /

A1
  • noun
  • Generic description for things, materials, objects
  • verb
  • To push material inside something, with force

those

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US / ðəʊz /

UK / ðoz /

A1
  • determiner
  • The people or things we are talking about
  • pronoun
  • The objects far from the speaker

few

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US / fju: /

UK / fju /

A1
  • pronoun
  • Not many, a small number

earth

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US / ɜ:θ /

UK / ɚθ /

A1
  • noun
  • Wire connecting an electrical device to the ground
  • The planet we live on
  • Soil in which we grow plants

much

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US / mʌtʃ /

UK / mʌtʃ /

A1
  • adjecitve
  • Very; to a high level or degree
  • adverb
  • A lot; large amount; a high degree of
  • Nearly; basically
  • On many occasions; often
  • noun
  • A large amount; a great quantity

system

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US / 'sɪstəm /

UK / ˈsɪstəm /

A1
  • adjecitve
  • Working in an organized, logical way
  • noun
  • Set of organized, planned ideas that work together

green

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US / gri:n /

UK / ɡrin /

A1
  • adjecitve
  • Color of young leaves
  • Covered with vegetation, e.g. grass
  • Concerned about protecting the environment
  • The color of young leaves
  • Lacking in experience/knowledge due to being young
  • Being not fully grown or ripe, as in fruit
  • noun
  • Large grassy area
  • used as a part of a name of a place (UK)

breathing

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US / ˈbri:ðɪŋ /

UK / ˈbriðɪŋ /

A2
  • verb
  • To move air into and out of your lungs
  • To say something very softly
  • To stop moving so one can rest

animal

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US / ˈænɪml /

UK / ˈænəməl /

A1
  • noun
  • A living creature that is not a plant or person

automatically

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US / ˌɔ:tə'mætɪklɪ /

UK / ˌɔtəˈmætɪkl:ɪ /

B1
  • adverb
  • In a way not requiring control by a person

cyanobacteria

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US / /

UK / /

A1
  • noun
  • Predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chloroph

home

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US / həʊm /

UK / hom /

A1
  • adjecitve
  • A sports team's own field or place of play
  • adverb
  • Into the correct or intended position
  • noun
  • House, apartment or building to be rented or sold
  • Institution for sick or elderly people
  • Place where a person or a family lives
  • Country where a person lives or was born
  • Region that is native to peoples, plant or animals
  • verb
  • To move towards a particular target location

just

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US / dʒʌst /

UK / dʒʌst /

A1
  • adjecitve
  • Proper or appropriate; as is deserved
  • Doing or being what is right or fair
  • Legally correct; having enough evidence
  • adverb
  • Almost; nearly
  • Exactly at the time of
  • Exactly (the same as, like)

talk

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US / tɔ:k /

UK / tɔk /

A1
  • noun
  • Style of speaking
  • Discussion between two countries
  • Giving information in front of people; lecture
  • Saying things or ideas to someone with words
  • verb
  • To make a formal speech about something
  • To say things or ideas to someone with words

cow

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US / kaʊ /

UK / kaʊ /

A2
  • noun
  • Large farm animal from which we get milk and beef
  • verb
  • To make afraid or ashamed; intimidate

communicate

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US / kə'mju:nɪkeɪt /

UK / kəˈmjunɪˌket /

A2
  • verb
  • To give and exchange information

compound

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US / 'kɒmpaʊnd /

UK / kɑmˈpaUnd /

B1
  • adjecitve
  • (Of a term) created by combining two or more words
  • noun
  • Series of buildings that are walled or fenced off
  • Chemical made up of several others
  • Closed walled area, as in a prison
  • Something formed by combining elements/parts
  • Term created by using two or more words together
  • verb
  • To pay interest on a loan including the interest
  • To make something from various parts or components
  • To make a mistake or problem worse

for

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US / fə(r) /

UK / fɔr,fə /

A1
  • preposition
  • Used to show the purpose, or need of something

time

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US / taɪm /

UK / taɪm /

A1
  • noun
  • Speed at which music is played; tempo
  • Point as shown on a clock, e.g. 3 p.m
  • Number of hours, minutes needed to do something
  • Occasion when something happens
  • Period or occasion that something occurred
  • Period in history or the past
  • Something measured in minutes, hours, days, etc.
  • How long an event takes; duration
  • verb
  • To check speed at which music is performed
  • To choose a specific moment to do something
  • To measure how long an event takes, e.g. a race
  • To schedule something to occur at a specific moment

why

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US / waɪ /

UK / hwaɪ, waɪ /

A1
  • adverb
  • Question word to ask for a reason
  • exclamation
  • (Used to express surprise or approval)

kill

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US / kɪl /

UK / kɪl /

A1
  • noun
  • Animal killed by a person or other animal
  • verb
  • To cause someone to experience a lot of pain
  • To end the life of a person or other living thing
  • To be very funny
  • To prevent something from continuing or operating
  • To do something unimportant to pass time quickly

soon

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US / su:n /

UK / sun /

A1
  • adverb
  • At a time not long from now

die

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US / daɪ /

UK / daɪ /

A1
  • noun
  • Cube with dots numbering 1-6 on it used in games
  • verb
  • To cease to function or work
  • (Of a thing) to stop being used or done
  • (Of a person) to stop living

piece

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US / pi:s /

UK / pis /

A1
  • noun
  • A counter in a board game
  • Small part of something larger
  • verb
  • To put items together to assemble something

well

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US / wel /

UK / wɛl /

A1
  • adjecitve
  • Being in a fortunate, good condition or state
  • Healthy and in good condition
  • adverb
  • In an acceptable, proper, or successful manner
  • In a complete, total, or full manner
  • A great and considerable degree
  • In a successful way, in a good or satisfactory way
  • exclamation
  • Used to begin or continue a particular statement
  • Used to show you want to start saying something
  • Used to express that you are waiting for a reply
  • You say this to change the topic of a conversation
  • Used to indicate you are making a final remark
  • noun
  • Long deep hole in the ground to get water
  • verb
  • To cause your eyes to fill with tears

good

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US / ɡʊd /

UK / ɡʊd /

A1
  • adjecitve
  • Proper, appropriate or right
  • (Of an amount) enough; plenty
  • Excellent; high quality
  • Acting well or properly; of moral character
  • In a positive or happy emotional state
  • noun
  • Advantage or benefit

but

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US / bət /

UK / bʌt,bət /

A1
  • conjunction
  • Used before you say something different, opposite

signal

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US / 'sɪɡnəl /

UK / ˈsɪɡnəl /

A2
  • adjecitve
  • Most important or most noticeable
  • noun
  • Movement of a hand or other means to send messages
  • Act/sound that tells people to do/start something
  • Road-side lights that direct traffic to go or stop
  • Sound and light waves carrying TV and radio data
  • verb
  • To be evidence/an indication something will happen
  • To make a noise or motion to tell someone to start

brady

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US / ˈbrædli /

UK / ˈbrædli /

A1

nerve

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US / nə:v /

UK / nɚv /

A2
  • noun
  • Fibers in the body that enable feeling, movement
  • Courage to do something that is difficult or risky

now

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US / naʊ /

UK / naʊ /

A1
  • adverb
  • At the present time or moment
  • Right away or in the next possible moment
  • Used to refer to something that just happened
  • Time between the present and a moment in the past
  • conjunction
  • Resulting from or because of something

wire

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US / 'waɪə(r) /

UK / waɪr /

A2
  • noun
  • Thin, flexible thread of metal
  • Thin string of metal used to carry electricity
  • Act of sending a message by telegraph
  • verb
  • To connect two or more things together with cable
  • To send money to someone electronically
  • To send or send word to by telegraph

autopilot

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US / ˈɔ:təʊpaɪlət /

UK / ˈɔ:toʊpaɪlət /

C2
  • noun
  • (For ships, planes) automatic navigational device

safety

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US / ˈseɪfti /

UK / ˈsefti /

A1
  • noun
  • Device on a gun to prevent accidental shooting
  • State of being free from harm or danger

want

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US / wɔnt /

UK / wɑnt, wɔnt /

A1
  • noun
  • Something you desire or wish for
  • State or condition of poverty
  • verb
  • To desire or wish for something; hope for a thing

can

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US / kæn /

UK / kən,kæn /

A1
  • noun
  • A metal container for storing food
  • other
  • Able to; have the skill to; have the time to
  • verb
  • To have permission to
  • To be possible to do
  • To preserve food by sealing it in a metal container

breathe

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US / bri:ð /

UK / brið /

A2
  • verb
  • To move air into and out of your lungs
  • To say something very softly
  • To stop moving so one can rest

nearly

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US / ˈniəli /

UK / ˈnɪrli /

A1
  • adverb
  • Not completely; almost

seriously

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US / ˈsɪəriəsli /

UK / ˈsɪriəsli /

B1
  • adverb
  • Involving or requiring great thought or study

interested

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US / ˈɪntrəstɪd /

UK / ˈɪntrɪstɪd, -tərɪstɪd, -təˌrɛstɪd /

A1
  • adjecitve
  • Having had your attention taken; curious
  • verb
  • To make someone want to know about something
  • To persuade to do, become involved with something

involve

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US / ɪn'vɒlv /

UK / ɪnˈvɑlv /

A2
  • verb
  • To have or be included as a part of something

neurotoxin

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US / ˌnjuərəuˈtɔksin /

UK / ˈnʊroˌtɑksɪn, ˈnjʊr- /

A1
  • noun
  • Any toxin that affects neural tissues

really

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US / ˈri:əli /

UK / ˈriəˌli, ˈrili /

A1
  • adverb
  • Used to stress something that is said; definitely
  • In a true or accurate manner
  • Very

would

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US / wʊd /

UK / wʊd /

A1
  • other
  • Used to indicate something imagined
  • Used to ask or request something politely
  • Verb used to indicate possibility, request etc.
  • Used to indicate a preference
  • Used to indicate a reaction
  • Indicates something that occurred repeatedly
  • Used to indicate willingness or ability to do

become

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US / bɪ'kʌm /

UK / bɪˈkʌm /

A1
  • verb
  • To begin to be; grow to be; develop into
  • To be suitable for a particular job or role

disease

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US / dɪˈzi:z /

UK / dɪˈziz /

A2
  • noun
  • Illness that affects a person, animal, or plant

somebody

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US / 'sʌmbədɪ /

UK / ˈsʌmˌbɑdi, -ˌbʌdi, -bədi /

A1
  • noun
  • Important well-respected person
  • pronoun
  • Person who is not known or named

round

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US / raʊnd /

UK / raʊnd /

A1
  • adjecitve
  • Being in the shape of a circle or ball
  • Consisting of curved and not straight lines
  • Somewhat fat or curved in physical appearance
  • Being a whole number, not a fraction, decimal
  • adverb
  • From beginning to end (e.g. of the year)
  • noun
  • One of the three-minute periods in boxing
  • Drinks bought by one person for a group
  • Series regular visits, routes, or stops at places
  • Single shot or bullet fired from a gun
  • An object with a circular shape
  • One stage in a series of games, e.g. football
  • One's turn in a game such as cards
  • preposition
  • Going around
  • verb
  • To cause or make a circular or curved shape
  • To go or pass around the bend or corner
  • To change from a fraction to nearest whole number

neurological

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US / ˌnjʊərəˈlɒdʒɪkl /

UK / ˌnjʊrəˈlɑdʒɪkəl /

B2
  • adjecitve
  • Concerning, used in or practicing neurology

not

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US / nɒt /

UK / nɑt /

A1
  • adverb
  • Word indicating the negative
  • (Used to form the negative of verbs)

quite

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US / kwaɪt /

UK / kwaɪt /

A1
  • adverb
  • Not very; fairly
  • Very; In a complete or total manner

body

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US / ˈbɒd.i /

UK / ˈbɑdi /

A1
  • noun
  • An object distinct from other objects
  • A group of people involved in an activity together
  • Main part of something
  • A person's physical self

make

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US / meɪk /

UK / mek /

A1
  • noun
  • Product made by a particular company; brand
  • verb
  • To arrange or prepare something e.g. dinner
  • To get to (a place) on time
  • To gain the status of (teacher, lawyer, etc.)
  • To create something by putting things together
  • To earn a certain amount of money at a job
  • To cause or force a person to do something
  • To cause something to happen or be formed

socket

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US / 'sɒkɪt /

UK / ˈsɑkɪt /

B2
  • noun
  • Area into which (e.g. a bone) will fit
  • Point in the wall to plug in an electrical device

synapse

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US / ˈsaɪnæps /

UK / ˈsɪnˌæps, sɪˈnæps /

C1
  • noun
  • Junction between neurons in the brain

chemist

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US / ˈkemɪst /

UK / ˈkɛmɪst /

B1
  • noun
  • Person who sells medicines; drug store
  • Person who studies or does research in chemistry

kind

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US / kaɪnd /

UK / kaɪnd /

A1
  • adjecitve
  • In a caring and helpful manner
  • friendly and considerate
  • noun
  • One type of thing

you

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US / jʊ /

UK / ju /

A1
  • pronoun
  • Person someone is speaking or writing to
  • Person or people in general

other

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US / 'ʌðə(r) /

UK / ˈʌðər /

A1
  • adjecitve
  • A thing different from that mentioned
  • determiner
  • (Something) else; not the first (one)
  • pronoun
  • Being the one and only thing of that category

one

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US / wʌn /

UK / wʌn /

A1
  • pronoun
  • You; we; people in general; someone
  • The thing or person previously referred to
  • adjecitve
  • Used to refer to people generally
  • Being a strong example of (something mentioned)
  • number
  • Number 1

than

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US / ðən /

UK / ðən /

A1
  • conjunction
  • Used to compare two things that are not equal

turn

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US / tɜ:n /

UK / tɚn /

A1
  • noun
  • Place where changing of direction happens
  • Your time or chance to perform a duty
  • Your chance to play or do in say a game
  • Unexpected change, as in the weather
  • verb
  • To become (a particular age)
  • To become a different quality, color, etc.
  • To change the direction of something, e.g. a car
  • To move in an opposite direction or position
  • To shape metal with a spinning tool

able

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US / 'eɪbl /

UK / ˈebəl /

A2
  • adjecitve
  • Skilled; good at something
  • Having the ability to do something

agonizing

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US / ˈægənaɪzɪŋ /

UK / ˈæɡəˌnaɪzɪŋ /

B2
  • verb
  • To suffer painfully over something; be in agony

analogue

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US / ˈænəlɒg /

UK / ˈænəˌlɔɡ, -ˌlɑɡ /

B2
  • noun
  • Something that is similar to another; equivalent

electricity

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US / ɪˌlekˈtrɪsəti /

UK / ɪlɛkˈtrɪsɪti,ˌilɛk- /

A2
  • noun
  • Energy generated positive and negative charges

fit

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US / fɪt /

UK / fɪt /

A2
  • adjecitve
  • Good looking; physically attractive
  • Proper or acceptable; morally or socially correct
  • noun
  • Sudden loss of body control; attack (of crying)
  • verb
  • To install a machine, equipment etc.
  • To adjust or change to the right size or shape
  • To be the right size and shape that you want

little

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US / 'lɪtl /

UK / ˈlɪtl /

A1
  • adjecitve
  • Being short in length of time
  • Not great in size, amount, or degree; small
  • Being very young or younger than others
  • adverb
  • By an amount or degree that is not very much
  • Not often; rarely
  • noun
  • A person's name

lead

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US / li:d /

UK / lid /

A1
  • adjecitve
  • Being the main part in movies or plays
  • noun
  • Wire for electricity, computer, etc.; cable
  • Information that could help to solve a crime
  • Main part in a play or movie
  • Heavy, gray metal element
  • Rope used to tie something to stop it escaping
  • Act of being at the front in a race or game
  • verb
  • To show the way or guide others
  • To be at the front of a race or game
  • To travel in front of; go in advance of others

natural

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US / ˈnætʃərəl /

UK / ˈnætʃərəl, ˈnætʃrəl /

A1
  • adjecitve
  • Being as one would expect; being usual or normal
  • Not made by humans; without human intervention

let

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US / let /

UK / lɛt /

A1
  • verb
  • To allow someone to do something
  • Introducing a suggestion to do something together
  • To rent a house, etc. to others

molecular

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US / mə'lekjələ(r) /

UK / məˈlɛkjəlɚ /

B2
  • adjecitve
  • About or caused by molecules

the

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US / ðə /

UK / ðə /

A1
  • article
  • Used to refer to something already mentioned
  • Used to show there is only one of something
  • determiner
  • Used to describe all of a family

across

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US / əˈkrɔs /

UK / əˈkrɔs,əˈkrɑs /

A1
  • adverb
  • Distance from one side to another
  • (Go) from one side to the other of something

this

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US / ðɪs /

UK / ðɪs /

A1
  • adjecitve
  • Used to indicate something already been discussed
  • Used to indicate something happening around now
  • adverb
  • An indication by a physical motion or gesture
  • A specific amount of
  • determiner
  • Person, thing, or idea near you
  • pronoun
  • Person, thing that has already been discussed

end

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US / end /

UK / ɛnd /

A1
  • noun
  • The point where a process or activity stops
  • A point that marks the limit of something; finish
  • Goal or desired result
  • The tip, edge or limit of something
  • verb
  • To be the last part of something

scum

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US / skʌm /

UK / skʌm /

B2
  • noun
  • Layer of unpleasant stuff forming on top of liquid
  • Person of very poor character, who is despised
  • A person considered unpopular or low-life

dangerous

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US / ˈdeɪndʒərəs /

UK / ˈdendʒərəs /

A1
  • adjecitve
  • Involving the chance of hurt or damage; risky

muscle

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US / 'mʌsl /

UK / ˈmʌsəl /

A2
  • noun
  • Physical power
  • Body tissue that moves parts of the body
  • verb
  • To use or muscles of force to get what you want

transmission

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US / trænsˈmɪʃn /

UK / trænsˈmɪʃən, trænz- /

B1
  • noun
  • Part of car including gears affecting speed of car
  • Electronic signal sent by radio waves; broadcast
  • Transfer of data from one machine to another
  • Transfer of money to another person or place
  • Act or process of transferring something to others

with

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US / wɪð /

UK / wɪð, wɪθ /

A1
  • preposition
  • As an employee of a certain company
  • Against something or someone
  • By using something as a means
  • Due to; because of
  • Including
  • Possessing as a feature
  • Related to
  • (Of the manner/attitude by which you do something)
  • Used to express that people or things are together

fool

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US / fu:l /

UK / ful /

A2
  • noun
  • An idiot; someone who does something stupid
  • Person kept by royalty to entertain with jokes
  • verb
  • To trick someone; to deceive

leads

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US / 'ledz /

UK / 'ledz /

A1
  • other
  • Wires for electricity, computer, etc.; cable
  • Information that could help to solve crimes
  • Ropes used to tie some things to stop it escaping
  • verb
  • To show the way or guide others
  • To be at the front of a race or game

see

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US / si: /

UK / si /

A1
  • verb
  • To go on a date with someone
  • To predict whether something is, or will be true
  • To understand what someone says
  • To use your eyes to look at something
  • To visit a place often for sightseeing or pleasure
  • To visit or meet with someone
  • To find out by waiting or looking
  • To watch (a game, movie or TV show)

could

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US / kəd /

UK / kʊd /

A1
  • other
  • Past form of 'can' to mean have ability
  • Used to ask for something politely, or to offer

know

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US / nəʊ /

UK / noʊ /

A1
  • verb
  • To be familiar with a person or place, thing
  • To feel sure or be convinced about something
  • To discover or be aware of something
  • To be able to distinguish
  • To have knowledge of things

group

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US / ɡru:p /

UK / ɡrup /

A1
  • noun
  • Two or more musicians who play music together
  • Number of people or things gathered together
  • verb
  • To combine or collect objects or people together

properly

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US / ˈprɔpəlɪ /

UK / ˈprɑːpərli /

A2
  • adverb
  • In an appropriate or correct manner

protect

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US / prə'tekt /

UK / prəˈtɛkt /

A1
  • verb
  • To defend someone or something from harm or danger

model

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US / ˈmɒdl /

UK / ˈmɑ:dl /

A2
  • adjecitve
  • Being an excellent example of
  • noun
  • Person who wears fashion to show it to the public
  • A small scale copy of a full original
  • verb
  • To wear and display clothes at a fashion show
  • To make a small scale copy of a full original

next

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US / nekst /

UK / nɛkst /

A1
  • adverb
  • The one that follows another in time or order
  • At a time or place directly after the present one
  • noun
  • The one that follows after
  • adjecitve
  • Immediately after the previous one
  • First occurrence after the present one

quickly

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US / ˈkwɪkli /

UK / ˈkwɪklɪ /

A1
  • adverb
  • Without taking a lot of time; fast

problem

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US / ˈprɒbləm /

UK / ˈprɑbləm /

A1
  • adjecitve
  • Causing trouble
  • noun
  • Something difficult to deal with or causes trouble
  • Question to show understanding of a math concept

ingest

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US / ɪnˈdʒest /

UK / ɪn'dʒest /

C1
  • verb
  • To eat, drink, or swallow something

have

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US / həv /

UK / hæv /

A1
  • verb
  • To drink, smoke, eat or use something
  • To experience the effects of something
  • To organize an event, or join in an activity
  • To own, possess, or hold something
  • To cause to happen or produce a particular effect

part

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US / pɑ:t /

UK / pɑ:rt /

A1
  • adjecitve
  • To some degree; half; not fully
  • noun
  • Division of a book
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obviously

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toxic

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  • Subtitles section
  • So today I want to talk to you about a molecule which, when it was first isolated, was called "Very Fast Death Factor".
  • Now this molecule is a really potent toxin, and it's found in pond scum.
  • The green, sort of gloopy algae stuff that you find sometimes on freshwater ponds.
  • It's actually not algae that makes this, it's called cyanobacteria.
  • And that green, it turns out, is kind of really important for this molecule.
  • As it turns out, the molecule itself is unstable to light.
  • So nature's clever, it didn't really - it wants a toxic molecule, for some reason, in that cyanobacteria, in that algal bloom, but it didn't want to spread too much.
  • So as soon as you take the molecule out of that, it becomes destroyed by light.
  • But nonetheless, don't let this fool you. This is a very, very dangerous molecule.
  • So I've got nearly 5 grams in this round bottom flask here.
  • That would be enough to kill around 350 people.
  • This is a seriously toxic molecule.
  • Now luckily, for everyone involved, this is actually in a protected form, this molecule you see here in this flask, this compound.
  • BRADY: What does that mean?
  • So, it's got a safety catch on it.
  • It's got something called a "protecting group".
  • And it completely kills the reactivity of one atom in this molecule, the nitrogen atom.
  • And that atom is a key to the biological response that it will provoke.
  • So if we quickly put that one down...
  • Here is a molecular model of anatoxin-a, which is the "Very Fast Death Factor".
  • It was renamed because that was thought not to be particularly scientific, but I quite like "Very Fast Death Factor", it does what it says on the tin, essentially.
  • So here is that key nitrogen.
  • So it turns out it's the nitrogen and this oxygen over here, and that distance, which is the key to its biological activity.
  • It fits a certain receptor that one of your natural neurotoxins triggers.
  • So this molecule is a toxin, and what it does and why it's called "Very Fast Death Factor" is that it paralyzes somebody who ingests it, be that an animal, a cow, a rabbit, bird, or whatever that's drinking from the pond,
  • or somebody who drinks or swims in the pond.
  • And it works really quickly, thus the name, "Very Fast Death Factor".
  • Turns out that a lot of potent toxins actually work very slowly. It's an agonizing death.
  • This works very, very quickly, a matter of minutes rather than hours or days.
  • What this does is it stops your brain communicating with your muscles.
  • So nerves have two functions really. One, they tell muscles and your body to move - be that breathe, which is part of - you know, you're on autopilot, you don't think about breathing, but every few seconds, your brain's saying "breathe in, breathe out, breathe in, breathe out." It does it automatically - or move your muscles.
  • So if you stop any of those signals, then obviously, your muscles stop.
  • And if you stop breathing, you're gonna die pretty quick.
  • Obviously this compound is a very dangerous compound, so why on earth would we be interested in making this and analogues of this compound?
  • Well it turns out that it could be a good treatment for Alzheimer's disease.
  • If you imagine a nervous system as a long piece of electrical wire, and every now and again along that wire you get, just like you do at home, a plug and a socket where two bits of wire join.
  • Now in electricity, the plug and the socket are made of metal, and the electrons can hop from one to the other, and there's no problem.
  • In nervous transmission there is a little gap in-between the plug and the socket.
  • And there's little molecules called "neurotransmitters" which come out of one end, they swim across the gap, and they trigger the response in the other end of the "synapse", as it's called.
  • And then the electrical signal goes on again.
  • Now obviously you don't want those electrical signals to be on all the time. So the little molecule comes back out, and there's a Pacman-type molecule which comes and munches those up.
  • To make sure that, you know, the response is gone, we now need to get rid of those and wait for the next signal.
  • Now in certain conditions like Alzheimer's disease, your normal neurological condition degrades some more.
  • They're called "neurodegenerative diseases".
  • The nerves in your brain don't work properly, and the problem is that you get too many of these Pacman molecules taking up too many of those transmitters.
  • And so your nervous system, your brain isn't working properly.
  • Now it could be that molecules like this, which are able to disable these Pacman molecules, could be very useful leads for treatment of Alzheimer's disease and other neurodegenerative diseases.
  • So that's why, as chemists, we're interested in these things.
  • We're not interested, obviously, in killing 350 people.