Definition of

Unit of Measurement

Unit of Measurement
A quantity used as a standard of measurement.

It is how much makes up "1" of the measurement.

Examples:
• The basic unit of length in metric is the meter
• Units of time include the second, minute, hour, day, week, month, year and decade.

Shown here is the US National Prototype Kilogram, which is the standard for measuring mass in the US.

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