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

Sensorial instincts are vital because water gilding—the application of a micro-thin layer of metal or other ornamental substrate to a surface—is an art form of more than 18 steps, some featuring processes going back 5,000 years. — Clare Coulson, Condé Nast Traveler, 8 Sep. 2026

Once the music starts, the film’s focus shifts from micro to macro as the individual fans are absorbed into each concert’s collective unconscious. — Nate Jones, Vulture, 7 Sep. 2026

Utilizing micro stitches made of plastic, Stitchy offers a convenient solution for quick fixes without the need for traditional sewing. — ABC News, 4 Sep. 2026

Elsewhere in the campaign, Sweeney sported a baby pink cami from the collection, pairing it with sheer micro shorts and an embroidered floral thong. — Hannah Malach, InStyle, 2 Sep. 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