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 temperature at which a substance changes phase from a solid to a liquid at a specific or...

a cell used for electrolysis.

the mesopause is the end of the mesosphere.

the layer from 80 km to 90 km above the surface of the Earth.

a crystal lattice of positive kernels in a sea of delocalised electrons to which they are...

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