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.
The researchers report that corrosion is triggered by an invisible film of liquid lead just one micron thick, which accelerates metal loss to a staggering rate of several millimeters per year. Aman Tripathi, Interesting Engineering, 12 Dec. 2025 Each tonearm is engineered with micron-level precision, using materials chosen for their stability, agility, and acoustic integrity. Robb Report Studio, Robb Report, 1 Dec. 2025 Its filter removes at least 99.97% of airborne particles as small as 0.1 microns, including dust, dander, pollen and mold. Bestreviews, Mercury News, 28 Nov. 2025 This pullover emblazoned with the logo of our sibling publication is made of 700 grams of micron cashmere by the storied brand Garin. Michael Calore, Wired News, 25 Nov. 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 15 Dec. 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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