micron

noun

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

Examples of micron in a Sentence

Recent Examples on the Web There’s also a HEPA filtration system for capturing particles as small as 0.1 microns. Paul Lamkin, Forbes, 26 Feb. 2024 Officials advised vulnerable populations to drink bottled water, boil water for one minute before drinking, and to filter tap water with a filter labeled to ANSI/NSF 53 or 58 standards or a filter designed to remove objects 1 micron or larger. Stephen Sorace, Fox News, 28 Sep. 2023 Particulate matter that's less than 2.5 microns in diameter, also called PM2.5, is particularly concerning because these tiny flecks of pollution can get deep into your lungs, causing a range of health problems. Aimee Picchi, CBS News, 12 Feb. 2024 Regulations require the water to go through filters that remove particles larger than one micron— .00004 inches —in size. Aliza Chasan, CBS News, 8 Jan. 2024 The researchers successfully produced silk films 3 to 300 nanometers thick on chips and etched them with features up to a few microns wide. IEEE Spectrum, 7 Jan. 2024 The vacuum features four-stage filtration with a HEPA filter that removes 99.9 percent of dust, debris, and pet dander measuring 0.3 microns. Nor'adila Hepburn, Better Homes & Gardens, 24 Jan. 2024 Microplastics are small plastic pieces that range in size from 1 micron to 5 millimeters in diameter. Alyssa Hui, Verywell Health, 22 Jan. 2024 Diagram showing the widths of beach sand (90 microns), human hair (60-70 microns), mold, dust, and pollen (10 microns), and PM 2.5 (2.5 microns). Evan Bush, NBC News, 20 Sep. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'micron.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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

Dictionary Entries Near micron

Cite this Entry

“Micron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micron. Accessed 19 Mar. 2024.

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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