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:

pan-shaped intrusion composed of granite or dolerite rock

Subject:

aerial photograph taken at 0°-30° to the vertical

Subject:

GIS scale that allows you to see less detail of an area

Subject:

molten (melted) rock

Subject:

(also called juvenile groundwater) water that was trapped when magma in the Earth crystallised...

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