It is a measure of the amount of matter in an object.
what does key mean in math
a unit of linear measure
Approximately
about
It is a measure of the amount of matter in an object.
unit is what you measure by for example: cm, ft, in, mm, m, yd, etc.
what does key mean in math
Having all angles with the same measure. A rectangle, for example is equiangular (each angle = 90 deg).
a unit of linear measure
Approximately
about
a
A dose unit of measure is likely to be a measured portion of a medicine.
I do not know of such a word related to math(s)
There is no such math word, so it does not mean anything. You may wish to check your spelling before posting questions!
It is usually a linear measure in the downward direction.