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echinate
echini
echino-
echinoderm
echinoid
echinus
echo
echo boomer
echo chamber
echo plate
echo quilting
echo sounder
echocardiogram
echocardiograph
echoencephalogram
echoencephalograph
echogram
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echo chamber
ech·o cham·ber (plural ech·o cham·bers)


noun 
Definition:
 
sound-reflecting room: a room with sound-reflecting walls, used in making acoustic measurements or generating sound effects
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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