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

This double-layer structure design precisely resolves the conflict between the needs for stress buffering and efficient transport at the micro-nano scale. —Prabhat Ranjan Mishra, Interesting Engineering, 27 Nov. 2025

Samsonite Omni 2 Hardside Expandable Luggage 3-piece Set Made from a micro-diamond texture that’s extremely scratch-resistant, the Samsonite Omni Luggage Set is built to last. —Jasmine Gomez, Travel + Leisure, 25 Nov. 2025

Noun

In Pontresina, a village of palatial hotels, its mayor, Nora Saratz Cazin, explained that even here, in a Puter-speaking zone, speech could fray into micro-dialects. —Simon Akam, New Yorker, 1 Dec. 2025

The micro-leather upper is treated with Scotchguard for endurance through the elements—and whatever your travels have in store. —Alesandra Dubin, Travel + Leisure, 1 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