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

Geekom is one of the most consistent companies in the micro PC market, reliably knocking out little rectangles packed with processing power at ultra-low prices. —K. Thor Jensen, PC Magazine, 31 Mar. 2026

On board is a micro rover built by ispace called Tenacious as well as several commercial payloads. —Richard Tribou, The Orlando Sentinel, 30 Mar. 2026

Insight from these experts informs investors on their search as their ratings are backed by an in-depth analysis of macro and micro factors. —Tipranks.com Staff, CNBC, 29 Mar. 2026

Both McCarty and Smith touted the number to the success of micro communities — 40 tiny homes that are 120 square feet, in North Natomas and South Sacramento. —Kat Tran, Sacbee.com, 27 Mar. 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