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

micro-

3 of 3

combining form

see micr-

Examples of micro in a Sentence

Recent Examples on the Web
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Adjective
By layering macro-level route planning with micro-level real-time reasoning, the platform enables the vehicle to interpret and respond to dynamic environments with greater nuance. Bojan Stojkovski, Interesting Engineering, 25 Apr. 2026 Our logic engine sits in between to stabilize the aircraft and reduce micro-control inputs. David Szondy april 25, New Atlas, 25 Apr. 2026 Similarly, the cube becomes a habitable work of micro architecture inserted inside the apartment. Ludovica Stevan, Architectural Digest, 21 Apr. 2026 In addition to the dramatic style, Aguilera also added edgy micro bangs. Catherine Santino, PEOPLE, 20 Apr. 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

Browse Nearby Words

Cite this Entry

“Micro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micro. Accessed 30 Apr. 2026.

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

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