asdic
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asdic
(ˈæzdɪk)n
(Electronics) an early form of sonar
[C20: from A(nti-)S(ubmarine) D(etection) I(nvestigation) C(ommittee)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
so•nar
(ˈsoʊ nɑr)n.
1. a method for detecting and locating objects submerged in water by echolocation.
2. the apparatus used in sonar.
[1940–45; so(und)na(vigation)r(anging)]
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Noun | 1. | 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; "sonar is an acronym for sound navigation ranging"; "asdic is an acronym for antisubmarine detection investigation committee" measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something navigational instrument - an instrument used for navigating pinger - a pulse generator used for echo sounding in sonar pulse generator - a generator of single or multiple voltage pulses; usually adjustable for pulse rate |
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