sonar
nounmasculinetécnico/su.naɾ/low
so·nar
Definition
A system for detecting objects under water by emitting sound pulses and detecting their echoes.
The ship's sonar detected a large object below.
Marine mammals use natural sonar for navigation.
Common collocations
sonar systemactive sonarpassive sonarechosounder
Etymology
Do inglês 'sonar', acrónimo de 'SOund Navigation And Ranging'.