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 substance that liberates electrons (undergoes oxidation) and causes the other substance to...

the process of gaining electrons.

the standard hydrogen half-cell to which all other half-cells have been compared when...

a chemical reaction in which heat, pressure or a catalyst is used, singly or in combination, to...

the scale used to compare the masses of atoms. Atoms are compared to carbon-12 atoms.

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