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.

aa
Subject:

sticky lava that does not flow far

Subject:

when a river overflows its banks

Subject:

lowering and moving of the watershed in the direction of the less energetic stream

Subject:

a remote sensing system that sends out radiation to a feature or area and sensors record the...

Subject:

using photovoltaic technology to harness the energy from the sun and convert it into electrical...

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