Sonar
/sˈoʊnɑr/
Listen pronunciation
Definition
(noun) Artificial echolocation by use of electronic equipment, with hydrophones to locate objects underwater, using the same wave-analysis principles that radar uses.
Sentence Examples
Sonar uses sound waves to 'see' in the water.
Sonar is short for Sound Navigation and Ranging.
CEFR Practice Quiz
The submarine used its advanced ____ system to navigate through the dark and deep ocean waters.