Ballonet meaning

bălə-nā
One of several small auxiliary gasbags placed inside a balloon or a nonrigid airship that can be inflated or deflated during flight to control and maintain shape and buoyancy.
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Any of several auxiliary air containers within a balloon or airship, that can be inflated or deflated to compensate for changing gas pressure during flight: used to control altitude and maintain proper structure.
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Any of several small balloons, inside a dirigible, that can be inflated or deflated to control buoyancy during flight.
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Other Word Forms

Noun

Singular:
ballonet
Plural:
ballonets

Origin of ballonet

  • French ballonnet diminutive of ballon balloon balloon

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

  • From French ballonnet.

    From Wiktionary