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Meaning of helium balloon | Babel Free

Noun CEFR B2

Definitions

A balloon that is filled with helium gas and rises up into the air if manually released.

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

helium burning helium dating helium descrambler helium flash helium fusion helium hydride