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:

carbon dioxide and other gases that absorb heat and contribute to the greenhouse effect

Subject:

waste water from sinks, washing machines, dishwashers, showers and baths, which can be used for...

Subject:

a reference system used to locate places on a map

Subject:

a street pattern in which roads cross at right angles

Subject:

(in calculations) before any deductions have been made (for depreciation of capital goods)

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