SONAR

Pronunciation (US): (GB):

Meaning:

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:

asdic is an acronym for antisubmarine detection investigation committee

Synonyms:

asdic; echo sounder; sonar

Classified under:

Nouns denoting man-made objects

Hypernyms ("sonar" is a kind of...):

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)

Meronyms (parts of "sonar"):

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)

Holonyms ("sonar" is a part of...):

pigboat; sub; submarine; U-boat (a submersible warship usually armed with torpedoes)