ballonet

American  

[bal-uh-ney] / ˌbæl əˈneɪ /

noun

1. an air or gasbag compartment in a balloon or airship, used to control buoyancy and maintain shape.

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ballonet British  

/ ˌbæləˈnɛt /

noun

1. an air or gas compartment in a balloon or nonrigid airship, used to control buoyancy and shape

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Etymology

Origin of ballonet

From French, dating back to 1900–05; balloon, -et

Example Sentences

The envelope is a rigid one of aluminium, subdivided into forty-nine compartments, each of which contains a flexible ballonet.

From Project Gutenberg

Each ballonet is theoretically proof against leakage--in practice there is an almost inappreciable porosity, which hardly counts for a comparatively short period, say a month.

From Project Gutenberg

During the rest of the night the crew worked with a will--patching, mending, and "doping" the holed fabric and carefully testing each repaired ballonet with compressed air before refilling it with the precious brodium.

From Project Gutenberg

The buckling of the aluminium envelope resulted in ballonet after ballonet collapsing under the pressure of water.

From Project Gutenberg

Her main feature is that she has a ballonet at each end.

From Project Gutenberg