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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
1900-1905
1900-05
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for heavier-than-air
  • He established the scientific principles for heavier-than-air flight and used glider models for his research.
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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13
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