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Dictionary

ech•o•graph

Pronunciation: (ek'ō-graf", -gräf"), [key]
—n.
1. a device that records oceanic depths by means of sonic waves.
2. a similar device used in ultrasonography to examine internal body structures or monitor fetal development.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

echogram

echoic

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