asdic

(′az′dik)

(electronics) British term for sonar and underwater listening devices. Derived from Anti-Submarine Detection Investigation Committee.

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[ܒæzܖdik] also ASDIC

ˈæzܖdik also ASDIC n. chiefly Brit. an early form of sonar used to detect submarines.

Etymology: World War II: acronym from Allied Submarine Detection Investigation Committee.

See the Introduction, Abbreviations and Pronunciation for further details.

IN BRIEF: n. - 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.

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