echolocation
/ˌɛkoʊloʊˈkeɪʃən/
noun
- A biological or technological system that uses sound waves to locate objects by listening to the echoes that bounce back.
- Some blind people learn a form of echolocation by clicking their tongues.
- Bats use echolocation to find insects in the dark.
- Dolphins rely on echolocation to navigate murky waters.
Synonyms