SONOBUOY
Meaning of SONOBUOY in English
/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 ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012