Glossary

Select a subject
Search for a definition...
Back to the Glossary
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
R
S
T
U
V
W
X
Y
Z

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:

meristem that produces a layer of bark on the outer surface of a plant.

Subject:

blood vessel that supplies the heart muscle with blood.

Subject:

disease caused when the arteries that supply the heart muscle become narrowed or blocked by the...

Subject:

the broad band of tissue in plant organs under the epidermis, including the parenchyma cells and...

Subject:

refers to an animal that is active during twilight i.e. at dawn and dusk.

Pages