Associations to the word «Sonar»

Wiktionary

SONAR, noun. (nautical) echolocation
SONAR, noun. (nautical) A device that uses hydrophones (in the same manner as radar) to locate objects underwater.
SONAR, noun. Abbreviation of sound navigation and ranging.

Dictionary definition

SONAR, noun. 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".

Wise words

Kind words do not cost much. Yet they accomplish much.
Blaise Pascal