English Dictionary

LIGHTER-THAN-AIR

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IPA (US): 

 Dictionary entry overview: What does lighter-than-air mean? 

LIGHTER-THAN-AIR (adjective)
  The adjective LIGHTER-THAN-AIR has 1 sense:

1. relating to a balloon or other aircraft that flies because it weighs less than the air it displacesplay

  Familiarity information: LIGHTER-THAN-AIR used as an adjective is very rare.


 Dictionary entry details 


LIGHTER-THAN-AIR (adjective)


Sense 1

Meaning:

Relating to a balloon or other aircraft that flies because it weighs less than the air it displaces

Similar:

light (of comparatively little physical weight or density)

Domain category:

aircraft (a vehicle that can fly)


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