Meaning of MICROMETER in English

MICROMETER

n.

Instrument for making precise linear measurements of dimensions such as diameters, thicknesses, and lengths of solid bodies.

It consists of a C-shaped frame with a movable jaw operated by a screw. The accuracy of the measurements depends on the accuracy of the screw-nut combination.

Britannica Concise Encyclopedia.      Краткая энциклопедия Британика.