micro

1 of 2

adjective

mi·​cro ˈmī-(ˌ)krō How to pronounce micro (audio)
1
: very small
especially : microscopic
2
: involving minute quantities or variations

micro

2 of 2

noun

plural micros

Examples of micro in a Sentence

Recent Examples on the Web
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Adjective
The suspension loop is micro pavé-set with yellow and black diamonds. Anthony Demarco, Forbes, 15 Mar. 2025 On board is a micro rover built by ispace called Tenacious as well as several commercial payloads. Richard Tribou, Orlando Sentinel, 15 Mar. 2025
Noun
Schauffele's injury is an acute intercostal strain/micro tear. Josh Hammer, Newsweek, 15 Feb. 2025 Adventure farther with High Valley Transit, which offers free micro and bus transit throughout Summit and Wasatch counties. Outside Online, 19 Dec. 2024 See All Example Sentences for micro

Word History

Etymology

Adjective

independent use of micro-

Noun

by shortening

First Known Use

Adjective

1923, in the meaning defined at sense 1

Noun

1971, in the meaning defined at sense 1

Time Traveler
The first known use of micro was in 1923

Browse Nearby Words

Cite this Entry

“Micro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micro. Accessed 20 Mar. 2025.

Kids Definition

micro

adjective
mi·​cro
ˈmī-krō

Medical Definition

micro

adjective
mi·​cro ˈmī-(ˌ)krō How to pronounce micro (audio)
1
: very small
especially : microscopic
2
involving minute quantities or variations

More from Merriam-Webster on micro

Last Updated: - Updated example sentences
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