Millimeter vs. Micron

A unit of length equal to one thousandth (10-3) of a meter, or 0.0394 inch. See Table at measurement.

A unit of length equal to one thousandth (10-3) of a millimeter or one millionth (10-6) of a meter. Also called micrometer.

Alternative spelling of millimetre

(physics) The thousandth part of one millimeter; the millionth part of a meter.

A lineal measure in the metric system, containing the thousandth part of a meter; equal to .03937 of an inch. See 3d Meter.

(figurative) A very tiny amount.

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

(linguistics) breve

A measure of length; the thousandth part of one millimeter; the millionth part of a meter.

A metric unit of length equal to one millionth of a meter