We found 3 definitions of sonars from 2 different sources.
NounPlural: sonars |
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sonar - 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" | ||
echo sounder, asdic | ||
measuring device, measuring instrument, measuring system instrument that shows the extent or amount or quantity or degree of something | ||
navigational instrument an instrument used for navigating | ||
pigboat, u-boat, sub, submarine a submersible warship usually armed with torpedoes | ||
pinger a pulse generator used for echo sounding in sonar |