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.

a chemical cell in which electrical energy from a battery is used to produce chemical reactions...

Subject:

short and long waves radiated by the sun

a very small, negatively charged particle that moves around the nucleus of an atom.

oxidising agent.

the energy liberated when an electron is added to an isolated, neutral atom in the gaseous state...

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