Sonar (Noun)
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; "sonar is an acronym for sound navigation ranging"; "asdic is an acronym for antisubmarine detection investigation committee".
Classification
Nouns denoting man-made objects.
Examples
- The Navy used sonar to detect and track enemy submarines during the war.
- The scuba diver's sonar device helped her navigate through the murky waters of the reef.
- The research vessel was equipped with advanced sonar systems to map the ocean floor.
- The sonar signal bounced off the sunken ship, allowing the salvage team to pinpoint its location.
- Marine biologists used sonar to track the migration patterns of the endangered whales.