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 force that holds particles in the nucleus together.

shows the geometry of the molecule, all the atoms in the molecule and the bonds between all the...

primary particles: electrons, protons and neutrons.

the phase change of a substance from the solid phase directly into the gas phase without passing...

reactions in which an atom or group of atoms is replaced in a molecule by another atom or group...

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