Defn: The art of measuring with a micrometer.

MICROMILLIMETER
Mi`cro*mil"li*me`ter, n. Etym: [Micro- + millimeter.]

Defn: The millionth part of a meter.

MICRON
Mic"ron, n. Etym: [NL., fr. Gr. (Physics)

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

MICRONESIAN
Mi"cro*ne"sian, a. Etym: [From Micronesia, fr. Gr.

Defn: Of or pertaining to Micronesia, a collective designation of the islands in the western part of the Pacific Ocean, embracing the Marshall and Gilbert groups, the Ladrones, the Carolines, etc.

MICRONESIANS
Mi`cro*ne"sians, n. pl.; sing. Micronesian. (Ethnol.)

Defn: A dark race inhabiting the Micronesian Islands. They are supposed to be a mixed race, derived from Polynesians and Papuans.

MICRONOMETER
Mi`cro*nom"e*ter, n. Etym: [Micro- + chronometer.]