micro

1 of 3

adjective

mi·​cro ˈmī-(ˌ)krō 

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

Adjective

Nano Nuclear Energy stock is poised to benefit as the nuclear power provider takes steps to commercialize its micro-modular reactor in the midst of the artificial intelligence power boom, according to Roth Capital Partners. —Liz Napolitano, CNBC, 19 June 2026

Blink49 head of vertical content Tieren Hawkins is writing the micro drama. —Michael Schneider, Variety, 19 June 2026

These chic shoes also easily transition into formal wear and trendier garments like silk skirts, vibrant tops, or micro hot shorts. —Amber Rambharose, InStyle, 18 June 2026

Signature bowls include the Hash Hash (braised beef, sweet potato hash, horseradish crema, feta and pickled onion) and The Pioneer (shredded chicken, sweet potato hash, Peruvian green sauce, Israeli pico de gallo and micro cilantro). —Michael Deeds, Idaho Statesman, 17 June 2026

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

Phrases Containing micro

• micro-dose
• micro-dosing
• micro-grid
• micro-inverter
• micro-mobility
• micro-RNA

Rhymes for micro

• acknow
• aglow
• ago
• airglow
• aloe
• altho
• although
• ammo
• backflow
• backhoe
• banjo
• barbeau

Kids Definition

micro

adjective

mi·​cro

ˈmī-krō

: microscopic sense 3

Medical Definition

micro

adjective

mi·​cro ˈmī-(ˌ)krō 

1

: very small

especially : microscopic

2

involving minute quantities or variations