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

Definition of micron

Examples of micron in a Sentence

Recent Examples on the Web That number corresponds to a filter that can remove about 90 percent of particles that are 1 micron in size. Christie Aschwanden, Scientific American, 14 July 2021 An author of an MIT study that examined how tiny micron-scale aerosols can linger in the air are debunking claims made about their research. Cliff Pinckard, cleveland, 29 Apr. 2021 The test-mass sphere is fixed to one end of a thin rod that is suspended at its midpoint by a four-micron-thick quartz fiber. Ben Brubaker, Scientific American, 10 Mar. 2021 An area around a pair of dots on the subject’s shirt, for example, allows viewers to dive so far into the panorama that each pixel represents just over 1 micron of real world space. Popular Science, 25 Jan. 2021 The fundamental formal pleasure of watching a Fincher film is that every last micron of the experience has been considered, and then reconsidered, with an abundance of love, skill and precision. Jonah Weiner, New York Times, 19 Nov. 2020 Even the smallest change in Draco’s optical apparatus—a mere micron of change between its primary and secondary cameras—can throw the camera completely out of focus and cause DART to go blind. Daniel Oberhaus, Wired, 15 Oct. 2020 The winning model of a recent international nano car race traveled one micron, roughly the length of a bacterium, or about 0.000039 inches, in 29 hours. Paul Salopek, National Geographic, 2 Oct. 2020 By one estimate, there are a hundred million bits of debris that are a millimetre in size, a hundred trillion as small as a micron. Raffi Khatchadourian, The New Yorker, 21 Sep. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'micron.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of micron

1879, in the meaning defined above

History and Etymology for micron

New Latin, from Greek mikron, neuter of mikros small — more at micr-

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Last Updated

31 Jul 2021

Cite this Entry

“Micron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micron. Accessed 26 Sep. 2021.

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More Definitions for micron



English Language Learners Definition of micron


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

Medical Definition of micron

: a unit of length equal to one millionth of a meter

called also micrometer, mu

More from Merriam-Webster on micron

Nglish: Translation of micron for Spanish Speakers

Britannica.com: Encyclopedia article about micron


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