noun
- A system of underwater detection using sound waves to locate submarines and other underwater objects; sonar.
Usage: nautical; military; plural form; singular is 'asdic'; acronym: Anti-Submarine Detection Investigation Committee
Examples
- The naval vessel was equipped with advanced asdics to detect enemy submarines.
- During World War II, asdics became crucial technology for protecting convoys from underwater threats.
- The ship's asdics pinged repeatedly as they searched the ocean depths.
- Modern asdics can identify the type and distance of underwater vessels with remarkable accuracy.