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  • noun

Synonyms for 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

References in periodicals archive ?
Meanwhile, Lawrence had donned his headphones and, for the first time since his training at ASDIC school, heard the distinct sound of a submarine blowing its tanks.
The gallery has a life-sized reconstruction of an ASDIC hut on a British destroyer.
For starters, it helps to understand what the ASDIC is and how it came to be built in Toronto.
The present ones are obsolete on the basis that they are vulnerable to sonar and Asdic resources and even radar and aircraft.
A hydrophone effect was heard sounding like a torpedo and a strong asdic (sonar) contact was made.
Four of the corvettes under his command either had new captains or were fitted with unreliable radar and short-range ASDIC.
Frank Curry, an asdic operator aboard HMCS Kamsack left this account of an encounter with white mist during his first tour of duty: