Asdic

1 definition found

From WordNet (r) 2.0 [wn]:

  asdic
       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; sonar is an acronym for
           sound navigation ranging; asdic is an acronym for
           anti-submarine detection investigation committee [syn: {sonar},


            {echo sounder}]