# micro-joule

> English word · Noun

## Definitions
1. One millionth (10⁻⁶) of a joule, abbreviated as µJ.

## Etymology
From micro- + joule.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/micro-joule