micron

noun

mi·​cron ˈmī-ˌkrän 

: micrometer entry 2

Examples of micron in a Sentence

Recent Examples on the Web

To convert the solid preforms into fiber, workers load them into multi-story draw towers where they are heated and pulled down to 125 microns in diameter — roughly the width of a human hair. — Charlotte Observer, 15 Sep. 2026

Optomechanisms are a rich source of development in engineering, including telescopy, miniature projectors, tractor beams, and quantum optomechanical mirrors made from a few hundred atoms and only a few microns thick. — New Atlas, 4 Sep. 2026

Additionally, the average diameter of the cashmere fiber must not exceed 19 microns and the cashmere fibers in the wool product must contain no more than 3 percent (by weight) of cashmere fibers with average diameters that exceed 30 microns. — Angela Velasquez, Footwear News, 27 Aug. 2026

The photons emerged from an optical fiber just 5 microns in diameter, less than one-tenth the width of a human hair. — Rupendra Brahambhatt, Interesting Engineering, 23 Aug. 2026

Word History

Etymology

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

First Known Use

1879, in the meaning defined above

Rhymes for micron

• anton
• argon
• axon
• baronne
• baryon
• baton
• boron
• buisson
• bygone
• capon
• cardon
• chiffon

Kids Definition

micron

noun

mi·​cron ˈmī-ˌkrän 

: micrometer entry 2

Medical Definition

micron

noun

mi·​cron ˈmī-ˌkrän 

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

called also micrometer, mu