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:

the vertical extent of hot air that exists over a city

Subject:

hot temperatures over a city surrounded by the colder temperatures of the suburbs/countryside...

the difference between the energy absorbed to break bonds and the energy transferred to the...

the overall change in energy in a reaction, represented by ∆H. The difference in enthalpy of...

Subject:

a system of veins which carries blood from the digestive tract to the liver.

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