Nova S45E102: English vocabulary

causing a big and important change

the study of how medicines and other treatments help treat disease

to bite or chew something repeatedly, especially for a long time

to change something completely, especially in a way that has a big effect

the process of turning silver in color

to become infected and start producing pus

to make a sharp, hard metallic sound

the front edge of a step or stair

in a harmful or negative way

a small sac or tube in the body where something grows or is stored

a very tiny living thing that can only be seen with a microscope

good enough for people to live in

to connect things so that each one is linked to the others

to make a person or part of the body unable to move

a substance added to food to keep it fresh for longer

a part or thing that is attached to something larger, often one that seems less important

relating to the stomach and intestines

to produce and release a substance from a cell, gland, or organ

a tooth on a wheel that fits into another wheel to transfer motion

to value something very highly

a scientist who studies insects

able to be seen, noticed, or measured

different and moving in different directions

relating to the Amish, a Christian group known for simple, traditional living

the way someone walks

more able or skilled than someone or something else

an animal that does not have a backbone

relating to the stomach

showing disrespect or contempt

to supervise students during an exam

a chemical used to kill germs on surfaces

used to refer to other similar things or items not named

to settle in a place and take control of it, especially by sending people there to live

extremely overweight, especially in a way that affects health

giving out or handing out something, often quickly or generously

to get a reaction, answer, or feeling from someone

a frog of the genus Rana

to make a harsh, high-pitched sound as it moves or is pressed

a condition that makes it hard to pass stool

important and strongly influencing later work or events

something that makes a surface, line, or shape even or level

a very small living thing, such as a bacterium or virus

to eat something in a noisy or casual way

damaged by a sharp object that has made a hole in it

a very small amount of something

a medical tool used to inject or remove liquid

a slight shaking movement

likely to make people angry or cause trouble

relating to the nervous system or to neurology

the hard foot of an animal such as a horse, deer, or cow

a minor illness or health problem

to swallow food or drink quickly, often in a noisy way

a feeling that something good will happen

to make a short, high sound, especially like a small bird or insect

a condition in which a body part, ability, or function is damaged or weaker than normal

spreading or increasing in an uncontrolled way, especially when something is bad

a very contagious viral disease that causes fever, cough, and a red rash

a poisonous substance produced by a living thing, especially bacteria

a piece of clothing with trousers and a bib front, worn over a shirt for work or casual wear

a drive or trip in a car, especially for pleasure

to force someone to do something, or make them feel they must do it

to make something more varied or different

a painful open sore on the skin or inside the body

to separate threads or fibers, or come apart into threads

done without conscious control

done because of a strong, hard-to-control urge

the showing of a film or TV program to an audience

a person from the Netherlands

containing salt or tasting like salt

to form a clear picture of something in your mind

offensive because it is sexual, rude, or indecent

the act of removing a covering, layer, or clothes

locked with a key

great influence or power, especially in politics or business

a period when something is deliberately stopped or put on hold

to help explain something or make it easier to understand