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.

amu

atomic mass unit – measured as 1 twelfth of a C-12 atom.

Subject:

reactions in which smaller simpler molecules joint form larger,complex molecules

the absence of oxygen.

Subject:

cellular respiration that takes place when free oxygen is absent

a comparison between two things that are similar, often using the well-known qualities of one...

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