Found 1 items, similar to echo sounder.
English → English (WordNet)
Definition: echo sounder
echo sounder
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,
asdic]