Etymology
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echolocation (n.)

1944, from echo (n.) + location.

updated on September 03, 2012

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Definitions of echolocation from WordNet

echolocation (n.)
determining the location of something by measuring the time it takes for an echo to return from it;
Synonyms: echo sounding
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.