micro

noun

plural micros
Synonyms of micronext

Word History

Etymology

by shortening

First Known Use

1971, in the meaning defined at sense 1

Time Traveler
The first known use of micro was in 1971

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Cite this Entry

“Micro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micro. Accessed 12 Jun. 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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