micrometer

1
[ mahy-krom-i-ter ]
/ maɪˈkrɒm ɪ tər /

noun

any of various devices for measuring minute distances, angles, etc., as in connection with a telescope or microscope.
Also called mike. micrometer caliper . a precision instrument with a spindle moved by a finely threaded screw, for the measurement of thicknesses and short lengths, commonly used by machinists for turning shafts or boring holes.

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Also especially British, mi·crom·e·tre .

Origin of micrometer

1
First recorded in 1660–70; micro- + -meter

Definition for micrometer (2 of 2)

micrometer2
[ mahy-kroh-mee-ter ]
/ ˈmaɪ kroʊˌmi tər /

noun

Origin of micrometer

2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for micrometer

British Dictionary definitions for micrometer

micrometer
/ (maɪˈkrɒmɪtə) /

noun

any of various instruments or devices for the accurate measurement of distances or angles
Also called: micrometer gauge, micrometer calliper a type of gauge for the accurate measurement of small distances, thicknesses, diameters, etc. The gap between its measuring faces is adjusted by a fine screw, the rotation of the screw giving a sensitive measure of the distance moved by the face

Derived forms of micrometer

micrometry, nounmicrometric (ˌmaɪkrəʊˈmɛtrɪk) or micrometrical, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for micrometer (1 of 2)

micrometer 11
[ mī-krŏmĭ-tər ]

n.

A device for measuring very small distances, objects, or angles, especially one based on the rotation of a finely threaded screw, as in relation to a microscope.

Medical definitions for micrometer (2 of 2)

micrometer 22
[ mīkrō-mē′tər ]

n.

A unit of length equal to one thousandth (10-3) of a millimeter or one millionth (10-6) of a meter.micron
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for micrometer (1 of 2)

micrometer1
[ mī-krŏmĭ-tər ]

A device for measuring very small distances, angles, or objects, especially one based on the rotation of a finely threaded screw, as in relation to a microscope.

Scientific definitions for micrometer (2 of 2)

micrometer2
[ mīkrō-mē′tər ]

A unit of length in the metric system equal to one millionth (10-6) of a meter. Also called micron
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.