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:

when magma explodes out onto the Earth's surface through a central vent in the crust

Subject:

force which causes movement away from the centre

Subject:

force which causes movement towards the centre

Subject:

(also called streamflow) rainwater that flows in a river channel

Subject:

pattern made by a single river channel

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