bal·​lo·​net ˌba-lə-ˈnā How to pronounce ballonet (audio)
: a compartment of variable volume within the interior of a balloon or airship used to control ascent and descent

Word History


French ballonnet, diminutive of ballon

First Known Use

1872, in the meaning defined above

Time Traveler
The first known use of ballonet was in 1872

Dictionary Entries Near ballonet

Cite this Entry

“Ballonet.” Dictionary, Merriam-Webster, Accessed 25 May. 2024.

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