1. one 100th of a meter, equivalent to 0.3937 inch. Abbreviation: cm, cm.

also centimetre, 1801, from French centimètre (18c.), coined from Latin centum “hundred” (see hundred) + French mètre (see meter (n.2)).


  1. A unit of length equal to one hundredth (10-2) of a meter.

  1. A unit of length in the metric system equal to 0.01 meter. See Table at measurement.

A unit of length in the metric system; one-hundredth of a meter, or about two-fifths of an inch.

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