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gray-scale ultrasonography

gray-scale ultrasonography in Medicine

gray-scale ultrasonography n.
Ultrasonography that displays small differences in an acoustical impedance as if they were different shades of gray.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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