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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.


ballonet British  
/ ˌbæləˈnɛt /

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ballonet

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The immediate cause may have been a leaky valve permitting the gas to escape, or a faulty air-pump which made prompt filling of the ballonet impossible.

From Aircraft and Submarines The Story of the Invention, Development, and Present-Day Uses of War's Newest Weapons by Willis J. (Willis John) Abbot

This attachment serves the purpose of a ballonet.

From Aeroplanes and Dirigibles of War by Frederick Arthur Ambrose Talbot

He may thus be said to have invented the ballonet, or air-chamber of the balloon, and to be the father of later successful airships.

From The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force by Sir Walter Alexander Raleigh

To secure the necessary inclination of the balloon while in flight, air can be transferred from one of the compensators, say at the fore end of the ship, into the ballonet in the aft part.

From The Mastery of the Air by William J. Claxton

It appears to be rearing up on end, as if the extremity saddled with the ballonet were weighted.

From Aeroplanes and Dirigibles of War by Frederick Arthur Ambrose Talbot

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