[hev-ee-er-th uh n-air]
- (of an aircraft) weighing more than the air that it displaces, hence having to obtain lift by aerodynamic means.
Origin of heavier-than-air
First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for heavier-than-air
Wood is not employed in the construction of these heavier-than-air craft.Aeroplanes and Dirigibles of War
Frederick A. Talbot
Heavier-than-air machines have gradually popularized flying.Zeppelin
It was, without shadow of doubt, the last word in the science and manufacture of a heavier-than-air machine.The Great Airship.
F. S. Brereton
Not until the twentieth century did the advocates of the heavier-than-air machines show the value of their fundamental idea.
On his return to Paris he at once began experimenting with heavier-than-air machines.
- having a density greater than that of air
- of or relating to an aircraft that does not depend on buoyancy for support but gains lift from aerodynamic forces