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:

in plants: the first plant to become established in an area.in plants: the first plant to become...

Subject:

a vertical vein of igneous rock beneath the earth's surface

Subject:

the cylinder of parenchyma found from the centre of the stem to the inside of the vascular...

Subject:

found in the cell wall of xylem cells where the secondary cell wall is absent but the primary...

Subject:

an endocrine gland attached to the base of the hypothalamus, which secretes hormones that play a...

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