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.

the ratio of actual yield to theoretical yield in a chemical reaction.

horizontal rows of elements in the periodic table that are arranged according to their atomic...

a table of the elements in which elements with similar chemical and physical properties are...

variation in a repetitive way as you move through the periodic table vertically or horizontally...

pH

a measure of the acidity or alkalinity of a solution.

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