micron

noun

mi·​cron ˈmī-ˌkrän 

: micrometer entry 2

Examples of micron in a Sentence

Recent Examples on the Web

Plus a micron filter — that stops algae from escaping the bucket into the pond. — Lucia Cheng, Des Moines Register, 21 July 2026

In a typical wildfire, the nasty particles that harm human health are about the size of one micron, Reid said. — Seth Borenstein, Chicago Tribune, 17 July 2026

All of these dimensions are thought to be as small as physically possible — close to the Planck scale (10-35 meters) — but the researchers proposed that the dark dimension could be significantly bigger than the others — on the order of a micron (10-6 meters). — Quanta Magazine, 22 June 2026

Tiny silica beads about 10 microns in diameter are projected at the polymer at about 750 meters per second (over 1,600 miles per hour) with the amount of energy absorbed measured by calculating the change in particle velocity before and after the beads pass through. — Shirl Leigh june 10, New Atlas, 10 June 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