From formal English to slang. 2014.
lighter-than-air — [līt′ər than er′] adj. designating or of an airship or a balloon filled with a gas lighter than air … English World dictionary
Lighter than air — Some gases are buoyant in air because they have densities lower than that of air (about 1.2 kg/m3, 1.2 g/l). Lighter than air gases are used to fill craft called aerostats, which include free balloons, moored balloons, and airships, to make the… … Wikipedia
lighter-than-air — /luy teuhr dheuhn air /, adj. Aeron. 1. (of an aircraft) weighing less than the air it displaces, hence obtaining lift from aerostatic buoyancy. 2. of or pertaining to lighter than air craft. [1900 05] * * * … Universalium
lighter-than-air aircraft — An aircraft that is supported by its buoyancy in the air. Balloons are one of the categories of lighter than air aircraft … Aviation dictionary
lighter-than-air — weighs less than air, has very little weight, is very light … English contemporary dictionary
lighter-than-air — /laɪtə ðən ˈɛə/ (say luytuh dhuhn air) adjective 1. (of aircraft) of less specific gravity than the air. 2. of or relating to such aircraft …
lighter-than-air — adjective Date: 1903 of less weight than the air displaced … New Collegiate Dictionary
lighter-than-air — adjective relating to a balloon or other aircraft that flies because it weighs less than the air it displaces • Similar to: ↑light • Topics: ↑aircraft … Useful english dictionary
lighter-than-air craft — noun aircraft supported by its own buoyancy • Hypernyms: ↑aircraft • Hyponyms: ↑airship, ↑dirigible, ↑balloon … Useful english dictionary
Air pollution dispersion terminology — describes the words and technical terms that have a special meaning to those who work in the field of air pollution dispersion modeling. Governmental environmental protection agencies (local, state, province and national) of many countries have… … Wikipedia
