noun
- a system that uses sound waves to detect and locate objects underwater
Usage: nautical; military
Examples
- The submarine used sonar to navigate through the dark waters.
- Marine biologists use sonar to study whale migration patterns.
- The ship’s sonar detected a large object on the ocean floor.
- Sonar technology has greatly improved underwater exploration.
- The navy relies on sonar for detecting enemy vessels.
- Dolphins have a natural sonar system called echolocation.