Heliox
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A mixture of helium and oxygen used as a breathing gas. uncountable
Synonyms
All synonymsEtymology
Blend of heli(um) + ox(ygen).
Related phrases
More for "heliox"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.