Definition:Unit of Measurement

Definition
A unit of measurement is a specified magnitude of a given physical quantity, defined by convention.

It is used as a standard for measurement of that physical quantity.

Any other value of the physical quantity can be expressed as a multiple of that unit of measurement.

Also known as
Some sources give this as unit of measure.

Also see

 * Definition:Fundamental Unit (Physics)
 * Definition:Dimension of Measurement