The millimetre (SI symbol: mm; international spelling) or millimeter (American spelling) is a unit of length in the International System of Units (SI), equal to one thousandth of a metre, the SI base unit of length.

Definition: A millimeter (symbol: mm) is a unit of length in the International System of Units (SI). It is defined in terms of the meter, as 1/1000 of a meter, or the distance traveled by light in 1/299 792 458 …

As the name suggests, a millimeter is equal to one thousandth of a meter, making it a very small unit of measurement. To put the size of a millimeter into perspective, it is roughly the thickness of a credit …

The meaning of MILLIMETER is a unit of length equal to 1/1000 meter.

“Millimeter” is a unit of length that equals one-thousandth of a meter. It is a small unit of measurement compared to the centimeter, meter, inches, and feet we are familiar with.

Millimeter is the metric unit of length used for measuring small objects and quantities such as medicines, length of a pen tip, etc. It is most commonly written as 'mm'.

MILLIMETER definition: a unit of length equal to one thousandth of a meter and equivalent to 0.03937 inch. mm See examples of millimeter used in a sentence.

millimetre (mm), unit of length equal to 0.001 metre in the metric system and the equivalent of 0.03937 inch.

Illustrated definition of Millimeter | Millimetre: A Metric measure of distance used for small lengths. The abbreviation is mm There are 1000 mm in one meter....

A millimeter (mm) is one-thousandth of a meter or one-tenth of a centimeter - about the thickness of a credit card. It's the standard unit for precision measurements in engineering, manufacturing, and …