Meaning of millimeter

millimeter




A millimeter is a tiny unit of measurement. The thickness of a dime is a little more than a millimeter, and there are a thousand millimeters in a meter.

If you’re using metric units to measure the length of something, you’ll be dealing in meters and variations on meters, including millimeters. Look at a ruler that includes centimeters, the units of metric measurement that are closest in length to inches. The smallest units marked on the ruler are millimeters — there are ten of them in each centimeter. Although the word millimeter sounds like “million,” it actually means “thousandth of a meter.”

Definitions of millimeter
  1. noun

    a metric unit of length equal to one thousandth of a meter

    synonyms:

    millimetre, mm

    see moresee less

    type of:

    metric linear unit

    a linear unit of distance in metric terms

Word Family

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