Lighter Than Air (noun) Definition, Meaning & Examples

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adjective Aeronautics.
  1. (of an aircraft) weighing less than the air it displaces, hence obtaining lift from aerostatic buoyancy.
  2. of or relating to lighter-than-air craft.
adjective (lighter-than-air when prenominal)
  1. having a lower density than that of air
  2. of or relating to an aircraft, such as a balloon or airship, that depends on buoyancy for support in the air
Lighter Than Air (noun) Definition, Meaning & Examples

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