heliair
A mixture of helium, nitrogen and oxygen, used as a breathing gas instead of normal airA mixture of helium, nitrogen and oxygen, used as a breathing gas instead of normal air.
UK/ˈhiː.liˌɛə/US/ˈhi.liˌɛɹ/
Meaning
1 senses(uncountable)A mixture of helium, nitrogen and oxygen, used as a breathing gas instead of normal air.
Origin
Blend of heli(um) + air.Blend of heli(um) + air.
Wiktionary, CC BY-SA 4.0 · source
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable
See also
neighbours in the dictionaryDictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.