# microhertz

> English word · Noun

## Definitions
1. A unit of frequency equal to one millionth of a hertz; approximately once every eleven and a half days.

## Etymology
From micro- + hertz.

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