heliair en · NOUN
Pronunciation
- /ˈhi.liˌɛɹ/ (General-American)
- /ˈhiː.liˌɛə/ (Received-Pronunciation)
Etymology
Blend of heli(um) + air.
Meanings
- (uncountable) A mixture of helium, nitrogen and oxygen, used as a breathing gas instead of normal air.
Dictionary
Words, grammatical forms and meanings linked to the ontology.