# nanometre

> English word · Noun · IPA /ˈnænə(ʊ)ˌmiːtə(ɹ)/

## Definitions
1. An SI subunit of length equal to 10⁻⁹ metres.

## Etymology
From nano- + metre.

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