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asdic

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noun as·dic \ˈaz-(ˌ)dik\

Definition of asdic

chiefly British

  1. :  sonar



Origin and Etymology of asdic

from asdics underwater echo ranging, probably from Anti-Submarine Division (British Admiralty department 1916–18) + -ics


First Known Use: 1939


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different from the usual or normal

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