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Feb 16, 2012
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Dictionary


ul•tra•son•ics



Pronunciation: (ul"tru-son'iks), [key]
—n. (used with a sing. v.)
the branch of science that deals with the effects of sound waves above human perception.

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

ultrasonicultrasonography
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