sonobuoy

[ son-uh-boo-e, -boi ]

nounNavigation.
  1. a buoy that emits a radio signal on receiving an underwater signal from a vessel.

Origin of sonobuoy

1
First recorded in 1940–45; sono- + buoy

Words Nearby sonobuoy

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

British Dictionary definitions for sonobuoy

sonobuoy

/ (ˈsəʊnəˌbɔɪ) /


noun
  1. a buoy equipped to detect underwater noises and transmit them by radio

Origin of sonobuoy

1
from sonic + buoy

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