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lighter-than-air: Meaning and Definition of

light•er-than-air

Pronunciation: (lī'tur-un-âr'), [key]
— adj. Aeron.
  1. (of an aircraft) weighing less than the air it displaces, hence obtaining lift from aerostatic buoyancy.
  2. of or pertaining to lighter-than-air craft.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
lighterman lightface
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