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 small finger-like projection found on the inner folds of the small intestine, which increases...

Subject:

extremely small infectious particles that can only reproduce inside a host cell.

Subject:

the maximum amount of air that can be breathed in and out.

Subject:

a complex organic substance needed by the body in small amounts for normal growth and...

Subject:

controlled by the person's conscious mind.

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