micron

noun

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

Examples of micron in a Sentence

Recent Examples on the Web
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.
Its filter is designed to capture 99.97% of airborne particles 0.3 microns in size for cleaner, less musty air. Julia Harrison, Architectural Digest, 4 Apr. 2025 Each component is manually machined on the Handmade 2 to within tolerances of just a few microns. Paige Reddinger, Robb Report, 24 Jan. 2025 Using a regular controller, players can control a tiny digital ship, firing nanoscale bullets to push around a physical polystyrene ball just a few microns wide. Michael Irving, New Atlas, 27 Feb. 2025 Researchers studying health outcomes in southern California concluded that exposure to particular matter smaller than 2.5 microns, called PM2.5, from wildfires was up to 10 times more harmful to human health compared with exposure to PM2.5 from other sources. Allison Parshall, Scientific American, 13 Jan. 2025 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

Browse Nearby Words

Cite this Entry

“Micron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micron. Accessed 22 Apr. 2025.

Kids Definition

micron

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

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

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