echolocation

The perception of objects by means of reflected sound waves, typically high-frequency sounds. The process is used by some animals, such as bats and whales, for orientation and prey location.

See:

Acoustic location: The general use of sound to locate objects Animal echolocation: non-human animals emitting sound waves and listening to the echo in order to locate objects or navigate. Echo sounding: listening to the echo of sound pulses to measure the distance to the bottom of the sea, a special case of Sonar. Medical ultrasonography: the use of ultrasound echos to look inside the body

See also:

Radar: locating objects by detecting the echo of emitted radio waves Echolocation (album), an album by Fruit Bats Time to Echolocate, an album by The Ebb and Flow

This disambiguation page lists articles associated with the same title.