sono-buoy
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sono-radio buoy — |sä(ˌ)nō noun Etymology: son + radio + buoy : sonobuoy … Useful english dictionary
sonar buoy — same as ↑sonobuoy (see under ↑sono ). • • • Main Entry: ↑sonar … Useful english dictionary
sonobuoy — /son euh booh e, boy /, n. Navig. a buoy that emits a radio signal on receiving an underwater signal from a vessel. [1940 45; SONO + BUOY] * * * … Universalium