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.

the movement of particles suspended in a fluid (a liquid or a gas) as a result of being bumped...

small electrical cells such as those in watches, pacemakers, hearing aids and calculators.

produces plastic-coated electrical conductors.

the natural process in which carbon circulates though an ecosystem.

organic acids such as vinegar.

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