micro

1 of 3

adjective

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

micro

2 of 3

noun

plural micros
1
: microcomputer
2
: microprocessor

micro-

3 of 3

combining form

see micr-

Examples of micro in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Different cultures are ideal for different times, at both the macro and micro levels. — Tom Ulbrich, Forbes.com, 16 Oct. 2026 In Melrose Hill, Chainsaw Cafe is a charming, unpredictable micro cafe with a tight menu of arepas, coffee and stellar desserts. — Jenn Harris, Los Angeles Times, 15 Oct. 2026 FinalPress is a micro French press made of stainless steel (and zero plastic) that can brew hot, iced, or cold brew coffee anywhere, and comes with a unique bottom-lid ejection system for easy cleaning. — Time Staff, Time, 15 Oct. 2026 For those lingering warm days of autumn, pair a brown suede jacket with a shrunken tee and micro shorts, then finish with suede ballet heels for even more texture. — Kristina Rutkowski, Vogue, 14 Oct. 2026 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

Phrases Containing micro

Rhymes for micro

See All Rhymes for micro

Browse Nearby Words

micrinite
micro
micro-
See all Nearby Words

Cite this Entry

“Micro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micro. Accessed 20 Oct. 2026.

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Kids Definition

micro

adjective
mi·​cro
ˈmī-krō
: microscopic sense 3

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

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