Nanometer vs. Micron

One billionth (10-9) of a meter.

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 nanometre

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

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

(figurative) A very tiny amount.

(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