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.
Those are tiny, membranous particles, ranging from 10 microns down to 20 nanometers, that exit cells and dwell in the spaces among them. New Atlas, 4 Jan. 2026 YPlasma’s actuators are essentially thin films, measuring as little as 200 microns in thickness. Prabhat Ranjan Mishra, Interesting Engineering, 3 Jan. 2026 Working with wool The Woolmark Company recommends merino wool ranging from 17.5 microns to around 22 microns for denim, with 19.5 microns being the most common. Angela Velasquez, Sourcing Journal, 5 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 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 8 Jan. 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

More from Merriam-Webster on micron

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