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:

a hormone produced by the adrenal glands which helps to maintain the balance of sodium in the...

Subject:

plant-like organisms that live and grow in water; they make their own organic food by the...

Subject:

the excessive growth of algae in eutrophic streams, rivers and dams.

Subject:

an expression consisting of one or more algebraic terms.

Subject:

a species that has been introduced into an area in which it did not previously or naturally...

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