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echogram
echographia
echography
echoic
echoic memory
echoism
echolalia
echolocate
echolocation
echolocator
echopraxia
echovirus
Echuca
éclair
éclaircissement
eclampsia
éclat
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echolocation
ech·o·lo·ca·tion [ èkō lō káysh'n ]


noun 
Definition:
 
location by sound: a means of locating an object based on an emitted sound and the reflection back from it, used naturally by some animals, e.g. bats, and electronically by humans
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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