HyperDic: lighter-than-air

English > 1 sense of the word lighter-than-air:
ADJECTIVEalllighter-than-airrelating to a balloon or other aircraft that flies because it weighs less than the air it displaces
English > lighter-than-air: 1 sense > adjective 1
Meaningrelating to a balloon or other aircraft that flies because it weighs less than the air it displaces.
CategoryaircraftA vehicle that can fly
BroaderlightOf comparatively little physical weight or density / density

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