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.

reactions that raise the temperature of the surroundings by liberating energy

a process that releases energy from the system. This decreases the internal energy of the system...

a reaction in which more energy or heat is released than absorbed when the reaction takes...

materials that exhibit strong magnetic effects; form magnets or are attracted to magnets

materials put into the soil to provide the required nutrients essential to plant life and growth...

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