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 condition caused by a severe shortage of both energy and nutrients in the diet over an...

Subject:

undifferentiated cells found in almost all organisms that have the ability to develop into any...

Subject:

to destroy all living micro-organisms.

Subject:

a drug that speeds up the action of the nervous system.

Subject:

two bean-shaped guard cells surrounding a pore in the epidermis of a leaf that allow gases to...

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