micro

1 of 2

adjective

mi·​cro ˈmī-(ˌ)krō 

1

: very small

especially : microscopic

2

: involving minute quantities or variations

micro

2 of 2

noun

plural micros

1

: microcomputer

2

: microprocessor

Examples of micro in a Sentence

Recent Examples on the Web

Adjective

In the 1800s, for example, the German philosopher Georg Wilhelm Friedrich Hegel used the term Zeitgeist—the spirit of times—to refer to such ubiquitous and overlapping influences that operate across both macro and micro levels. —Maria Balaska, Time, 20 Dec. 2025

At a time when what divides us often seems greater than what unites us, their experiences offer critical lessons in rebuilding bonds at the micro-local level. —Everett Eaton, jsonline.com, 19 Dec. 2025

Noun

That’s due to the brand’s Liquid Silk Technology, where micro-pigments in the formula scatter light as it’s refracted by the skin, quite literally creating an optical illusion a glowing complexion—all while still maintaining a lightweight feel. —Conçetta Ciarlo, Vogue, 21 Dec. 2025

Confident micro-decisions can help rewire your brain and boost your trust in yourself. —Jessica Weiss, CNBC, 20 Dec. 2025

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-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