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:

the process whereby useful molecules, such as glucose and amino acids, as well as water and...

the species or substance that exists before a chemical reaction has occurred. A substance added...

the ratio of products to reactants.

an activity and a skill used for pleasure, to gather information, communicate, actively make...

Subject:

the movement of goods and services in the economy.

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