Aerostat meaning

ârō-stăt
An aircraft, especially a balloon or dirigible, deriving its lift from the buoyancy of surrounding air rather than from aerodynamic motion.
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An airship, balloon, or other aircraft that is lifted and sustained by means of one or more containers filled with a gas lighter than air.
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An aircraft, such as a dirigible or balloon, that derives its lift from buoyancy rather than from wings or rotors.
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A moored balloon flown in a semi-permanent manner, as a border patrol monitoring balloon affixed at 18,000 feet (~6km).
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Origin of aerostat

  • French aérostat Greek āero- aero- aero– Greek statos standing stato–

    From American Heritage Dictionary of the English Language, 5th Edition