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sonobuoy

noun
so·​no·​buoy | \ ˈsä-nə-ˌbȯi How to pronounce sonobuoy (audio) , -ˌbü-ē\

Definition of sonobuoy

: a buoy equipped for detecting underwater sounds and transmitting them by radio

Examples of sonobuoy in a Sentence

Recent Examples on the Web

 In addition the Trackers were armed with sonobuoys, droppable listening posts that radio any contacts back to the plane. — sandiegouniontribune.com, "May 13, 1958: Aboard the Nautilus," 13 May 2018

First Known Use of sonobuoy

1937, in the meaning defined above

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