Glossary

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Looking for a quick definition?

We’ve got loads of key subject terms in our subject glossaries. There are three ways of finding what you are looking for:

  • First click on the letters of the alphabet to browse for terms.
  • Select a subject from the drop-down menu above to filter the terms by Subject.
  • Or lastly, type the term you are looking for into the search box.

EXAMPLES

Here are some examples of the kinds of definitions you’ll find on this page.

Subject:

an infection of the skin, caused by a parasitic fungus. It causes cracked, inflamed and itchy...

Subject:

the thin, protective layer of gases around the Earth.

ATP
Subject:

(adenosine triphosphate), a compound used by cells for energy storage.

Subject:

specialised heart muscle tissue between the right atrium and right ventricle which conducts the...

Subject:

a heart chamber that receives blood from the body or lungs.

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