Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The technique of using reflected pulses of sound to determine depth or the location of objects (or fish) under water.
  • n. A particular measurement made using this technique.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. determining the location of something by measuring the time it takes for an echo to return from it

Etymologies

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