Illustration of micrometer
- micrometer 2
mi·crom·e·ter
mī-ˈkrä-mə-tər 
1
: an instrument used with a telescope or microscope for measuring minute distances
2
: a caliper for making precise measurements that has a spindle moved by a finely threaded screw
mi·cro·me·ter
ˈmī-krō-ˌmē-tər
: a unit of length equal to one millionth of a meter
called also micron
see Metric System TableExamples of micrometer in a Sentence
Recent Examples on the Web
Michael Irving, New Atlas, 10 July 2024
Particles that are less than 10 micrometers and 2.5 micrometers in diameter are called PM10 and PM2.5, respectively.
—Kristi Tanner, Detroit Free Press, 5 July 2024
Separating the silver conductors also proves challenging because they’re applied in a very thin layer–about 10 to 20 micrometers–that is strongly attached to the silicon.
—IEEE Spectrum, 17 June 2024
This beam was raster scanned across a square target area 22 micrometers on a side.
—IEEE Spectrum, 15 June 2024
See all Example Sentences for micrometer 
Noun
The Shoji Takeuchi Research Group at the University of Tokyo
In practice, the rotator seems to work as described, spinning at an average speed of about 20 to 40 micrometers per second.
—Michael Irving, New Atlas, 10 July 2024
Particles that are less than 10 micrometers and 2.5 micrometers in diameter are called PM10 and PM2.5, respectively.
—Kristi Tanner, Detroit Free Press, 5 July 2024
Separating the silver conductors also proves challenging because they’re applied in a very thin layer–about 10 to 20 micrometers–that is strongly attached to the silicon.
—IEEE Spectrum, 17 June 2024
This beam was raster scanned across a square target area 22 micrometers on a side.
—IEEE Spectrum, 15 June 2024
See all Example Sentences for micrometer
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'micrometer.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near micrometer
Cite this Entry
“Micrometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micrometer. Accessed 27 Jul. 2024.
Copy CitationKids Definition
micrometer
1 of 2 noun
mi·crom·e·ter
mī-ˈkräm-ət-ər
1
: an instrument used with a telescope or microscope for measuring very small distances
micrometry
noun
-ˈkräm-ə-trē
micrometer
2 of 2 noun
mi·cro·me·ter
ˈmī-krō-ˌmēt-ər
: a unit of length equal to one millionth of a meter
Medical Definition
micrometer
1 of 2 noun
mi·crom·e·ter
mī-ˈkräm-ət-ər
: an instrument used with a telescope or microscope for measuring minute distances
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