Search Result for "sonar": 
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):

sonar
    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]


Moby Thesaurus II by Grady Ward, 1.0:

30 Moby Thesaurus words for "sonar":
   astronavigation, bathometry, bathymetry, celestial navigation,
   chronometer, coastwise navigation, consolan, dead reckoning,
   depth sounding, echo sounding, echolocation, fathomage, fathoming,
   fix, line of position, loran, oceanography, pilotage,
   plane sailing, point-to-point navigation, radar, radio beacon,
   radio navigation, sextant, shoran, sofar, sounding, soundings,
   tables, water