dictionary.pt
sonar
nounmasculinetechnicaluncommon/su.naɾ/so·nar
Definition
1A system for detecting objects under water by emitting sound pulses and detecting their echoes.
Usage examples
“The ship's sonar detected a large object below.”
“Marine mammals use natural sonar for navigation.”
Synonyms
Common combinations
sonar systemactive sonarpassive sonarechosounder