micron

noun

mi·​cron ˈmī-ˌkrän How to pronounce micron (audio)
: micrometer entry 2

Examples of micron in a Sentence

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
High-precision lasers then scan the exterior surface at the micron level to assess its structural integrity. — Kaif Shaikh, Interesting Engineering, 15 Oct. 2026 Formlabs advertises speeds of up to 130mm/hour with this material at the printer's coarsest 250-micron layer setting. — Michael Lydick, PC Magazine, 14 Oct. 2026 For example, when a credit card is fragmented into particles some 10 microns in diameter, there is a more than 200-fold increase in its surface area, says Wei Min, a chemist at Columbia University and one of the senior authors of the study. — Payal Dhar, Scientific American, 14 Oct. 2026 Separated by more than 100 miles, the original satellites used microwaves to detect a change in distance of just one micron — 70 times smaller than the width of a human hair. — Ian James, Los Angeles Times, 24 Sep. 2026 See All Example Sentences for micron

Word History

Etymology

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

Rhymes for micron

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Browse Nearby Words

Micromys
micron
micronephridium
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Cite this Entry

“Micron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micron. Accessed 20 Oct. 2026.

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Kids Definition

Medical Definition

micron

noun
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

Britannica.com: Encyclopedia article about micron

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