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.

a solution in which water is the solvent.

the theory of acids and bases which defines an acid as a proton donor and a base as a hydroxide...

the gaseous envelope that surrounds the Earth.

the smallest particle of an element that can exist on its own (the basic building block of...

(amu) is equal to 1/12 of the mass of the 12C atom.

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