Wordnet 3.0
NOUN (1)
1.
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;
- Example: "sonar is an acronym for sound navigation ranging"- Example: "asdic is an acronym for antisubmarine detection investigation committee"[syn: sonar, echo sounder, asdic]
WordNet (r) 3.0 (2006):
asdic
n 1: 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" [syn: sonar, echo
sounder, asdic]