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Meaning of heliair | Babel Free

Noun CEFR B1
/ˈhiː.liˌɛə/

Definitions

A mixture of helium, nitrogen and oxygen, used as a breathing gas instead of normal air.

uncountable

CEFR level

B1
Intermediate
This word is part of the CEFR B1 vocabulary — intermediate level.

See also

heliangolide helianthamide helianthemum helianthin helianthoside helianthus

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