lighter-than-air
[ lahy-ter-th uh n-air ]
/ ˈlaɪ tər ðənˈɛər /
adjective Aeronautics.
(of an aircraft) weighing less than the air it displaces, hence obtaining lift from aerostatic buoyancy.
of or relating to lighter-than-air craft.
Origin of lighter-than-air
First recorded in 1900–05
Words nearby lighter-than-air
lighten up,
lightening,
lighter,
lighter fluid,
lighter than air,
lighter-than-air,
lighterage,
lighterman,
lightface,
lightfast,
lightfoot
British Dictionary definitions for lighter than air
lighter than air
adjective (lighter-than-air when prenominal)
having a lower density than that of air
of or relating to an aircraft, such as a balloon or airship, that depends on buoyancy for support in the air