# trimix

> English word · Noun

## Definitions
1. A mixture of helium, nitrogen, and oxygen used in deep diving as a breathing gas instead of air.

## Etymology
From tri- + mix.

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