Englishfor English speakers
sonar de forma estridente
sonar
—
noun
(= asdic)
a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return
sonar is an acronym for sound navigation ranging
asdic is an acronym for antisubmarine detection investigation committee
DE
—
noun
(= Delaware)
a Mid-Atlantic state; one of the original 13 colonies