1. 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
   "asdic is an acronym for antisubmarine detection investigation committee"
   - sonar, echo sounder

Derived forms: asdics

Type of: measuring device, measuring instrument, measuring system, navigational instrument

Part of: pigboat, sub, submarine, U-boat

Encyclopedia: Asdic

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