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.

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 …

“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.

Jul 26, 2024 · A millimeter is a unit of length in the metric system, equivalent to one thousandth of a meter. It is widely used for precise measurements in various fields such as engineering, construction, …

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'.

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

(abbreviation mm) Add to word list a unit of measurement of length equal to 0.001 meter (Definition of millimeter from the Cambridge Academic Content Dictionary © Cambridge University Press)

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....

metric system, international decimal system of weights and measures, based on the metre for length and the kilogram for mass, that was adopted in France in 1795 and is now used officially in almost all …

May 31, 2025 · A millimeter (also spelled “millimetre”) is a unit of length in the metric system—a system of units that includes centimeters, meters, and kilometers. 1 millimeter is equal to 1/1000 of a meter, …