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heavier-than-air

[hev-ee-er-th uh n-air] /ˈhɛv i ər ðənˈɛər/
adjective
1.
(of an aircraft) weighing more than the air that it displaces, hence having to obtain lift by aerodynamic means.
Origin of heavier-than-air
1900-1905
1900-05
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for heavier-than-air
Historical Examples
  • He showed that a heavier-than-air machine would sustain itself in the air if it could only be driven fast enough.

    American Men of Mind Burton E. Stevenson
  • heavier-than-air machines have gradually popularized flying.

    Zeppelin Harry Vissering
  • But what would you think if I told you that there is not an ounce of gasoline in my heavier-than-air craft?

  • Not until the twentieth century did the advocates of the heavier-than-air machines show the value of their fundamental idea.

    Aircraft and Submarines Willis J. Abbot.
  • Wood is not employed in the construction of these heavier-than-air craft.

    Aeroplanes and Dirigibles of War Frederick A. Talbot
  • On his return to Paris he at once began experimenting with heavier-than-air machines.

    Aircraft and Submarines Willis J. Abbot.
  • For years inventors studied ways of making a heavier-than-air machine sail through the sky like a bird.

    Boy Scouts in the Northwest G. Harvey Ralphson
  • Wright were experimenting with heavier-than-air machines, but general interest in the subject is quite recent.

  • In the duty of reconnoitring the dirigible possesses one great advantage over its heavier-than-air rival.

    Aeroplanes and Dirigibles of War Frederick A. Talbot
  • "Well, my father had worked for years perfecting the plans of a heavier-than-air flying machine," Morris resumed.

    Ashton-Kirk, Investigator John T. McIntyre
British Dictionary definitions for heavier-than-air

heavier-than-air

adjective
1.
having a density greater than that of air
2.
of or relating to an aircraft that does not depend on buoyancy for support but gains lift from aerodynamic forces
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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