micron

noun

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

Examples of micron in a Sentence

Recent Examples on the Web
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This helped the team scan entire intact human organs without destroying them and then zoom in down to less than one micron, or 50 times thinner than a human hair. Laura Baisas, Popular Science, 11 Mar. 2026 In a study published on Friday in the journal Science Advances, researchers explain how the original collision with Dimorphos slowed the entire binary’s solar orbit by around 12 microns per second. Jackie Flynn Mogensen, Scientific American, 6 Mar. 2026 The digital skull, which took more than half a decade to complete, has a resolution of 21 microns. Margherita Bassi, Interesting Engineering, 5 Mar. 2026 Weighing just 350 grams per meter, this double-sided material combines 21-denier organzino silk with long-fiber 15-micron cashmere. Luisa Zargani, Footwear News, 16 Feb. 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

Browse Nearby Words

Cite this Entry

“Micron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micron. Accessed 14 Mar. 2026.

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

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