follow Dictionary.com

Is irregardless a word?

micrometer1

or (especially British) micrometre

[mahy-krom-i-ter] /maɪˈkrɒm ɪ tər/
noun
1.
any of various devices for measuring minute distances, angles, etc., as in connection with a telescope or microscope.
2.
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.
Origin of micrometer1
1660-1670
1660-70; micro- + -meter

micrometer2

[mahy-kroh-mee-ter] /ˈmaɪ kroʊˌmi tər/
noun
1.
micron (def 1).
Origin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for micrometer
Historical Examples
British Dictionary definitions for micrometer

micrometer

/maɪˈkrɒmɪtə/
noun
1.
any of various instruments or devices for the accurate measurement of distances or angles
2.
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
micrometry, noun
micrometric (ˌmaɪkrəʊˈmɛtrɪk), 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
Cite This Source
Word Origin and History for micrometer
n.

1660s, from micro- + -meter. Originally a telescope attachment; from 1884 as a craftsman's fine measuring tool. Related: Micrometry; micrometric.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
micrometer in Medicine

micrometer mi·crom·e·ter1 (mī-krŏm'ĭ-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.

micrometer mi·cro·me·ter2 (mī'krō-mē'tər)
n.

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

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
micrometer in Science
micrometer 1
  (mī-krŏm'ĭ-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.
micrometer 2
  (mī'krō-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 © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for micrometer

Few English speakers likely know this word

Word Value for micrometer

16
19
Scrabble Words With Friends

Nearby words for micrometer