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.

Subject:

a hill formed from horizontal strata that is flat at the top (with a cap rock) but is narrower...

Subject:

a process where evaporation causes lime or calcium to move upwards as a result of capillary...

Subject:

a large cavity that remains after an explosion removes the top of a volcanic cone

Subject:

a steep, deep valley that has been eroded by a river and has horizontal strata

Subject:

resistant horizontal layer of rock at the top of a mountain or hill

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