# trion

> English word · Noun · frequency rank #98,821

## Definitions
1. A singlet state formed from three atoms of different colours

## Etymology
From tri- + -on.

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