mi·​cron ˈmī-ˌkrän How to pronounce micron (audio)

Examples of micron in a Sentence

Recent Examples on the Web The sample preparation involved crushing 70% to less than 2 mm, riffle split off 250g, pulverize split to better than 85% passing 75 microns. Sacramento Bee, 2 July 2024 The unit is constructed, in-house, to remarkable horological tolerances of 50 microns—the average cross-section of a human hair. Howard Walker, Robb Report, 20 June 2024 The other, called the Near-Infrared Spectrometer and Photometer, or NISP, can see much further into the near-infrared—out to a wavelength of two microns, roughly three times longer than the longest-wavelength light that our eyes can see. Phil Plait, Scientific American, 14 June 2024 Staying above it all Precision's device, called the Layer 7 Cortical Interface, uses electrode arrays on a yellow film, described as one-fifth the thickness of a human hair, which contains 1,024 electrodes ranging in diameter from 50 to 380 microns. Beth Mole, Ars Technica, 7 June 2024 See all Example Sentences for micron 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'micron.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


New Latin, from Greek mikron, neuter of mikros small — more at micr-

First Known Use

1879, in the meaning defined above

Time Traveler
The first known use of micron was in 1879

Dictionary Entries Near micron

Cite this Entry

“Micron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micron. Accessed 24 Jul. 2024.

Kids Definition


mi·​cron ˈmī-ˌkrän How to pronounce micron (audio)

Medical Definition


mi·​cron ˈmī-ˌkrän How to pronounce micron (audio)
: a unit of length equal to one millionth of a meter

called also micrometer, mu

More from Merriam-Webster on micron

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