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gray scale

noun
1.
a scale of achromatic colors having several, usually ten, equal gradations ranging from white to black, used in television and photography.
Origin
1935-1940
1935-40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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gray-scale in Medicine

gray scale n.
Gray-scale ultrasonography.

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

spelling
US spelling of "grey-scale".

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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8
8
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