Definition of heavier-than-air in English:

heavier-than-air

Line breaks: heavier-than-air

adjective

(Of an aircraft) weighing more than the air it displaces: the history of the development of heavier-than-air flying apparatus
More example sentences
  • It has been thoroughly researched in recent times that Richard Pearse was the first human being to take to the air in a heavier-than-air flying machine, and I think that is an absolutely wonderful thing.
  • Lord Kelvin, who is President of the prestigious Royal Society once said that heavier-than-air flying machines were impossible, and the Chairman of the major computer company, DEC, said that no-one would want a computer in their home.
  • Sometime before the Wright brothers' momentous flights of December 17, 1903, Quick began construction of a heavier-than-air flying machine of unknown configuration.

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noun
the outward appearance or apparent form of something…