echolocation

1. A sensory system in certain animals, such as bats and dolphins, in which usually high-pitched sounds are emitted and their echoes interpreted to determine the direction and distance of objects.
2. Electronics. A process for determining the location of objects by emitting sound waves and analyzing the waves reflected back to the sender by the object.

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The noun has one meaning:

Meaning #1: determining the location of something by measuring the time it takes for an echo to return from it
  Synonym: echo sounding

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Echolocation may refer to:

• 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
• Human echolocation, the use by people of sound to navigate
• Sonar (sound navigation and ranging), the use of sound to navigate or to locate other watercraft, usually by submarines
• 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
• Echolocation (album), a 2001 album by Fruit Bats

See also

• Radar, locating objects by detecting the echo of emitted radio waves
• Time to Echolocate, a 2005 album by The Ebb and Flow

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