Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun asdic

1 sense of asdic

Sense 1
sonar, echo sounder, 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")
       => measuring instrument, measuring system, measuring device -- (instrument that shows the extent or amount or quantity or degree of something)
       => navigational instrument -- (an instrument used for navigating)