Asdic

//ˈæzdɪk// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Sonar. historical, uncountable
  2. 2
    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 wordnet

Synonyms

All synonyms
echo soundersonarsonar

Etymology

Former codename during development, from ASD (Anti-Submarine Division). Sometimes erroneously explained as "Allied Submarine Detection Investigation Committee".

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.