contrast medium
noun Medicine/Medical.
a radiopaque substance injected into a part of the body, as the stomach or duodenum, to provide a contrasting background for the tissues in an x-ray or fluoroscopic examination.
Words nearby contrast medium
contrary motion, contrasexual, contrast, contrast bath, contrast enema, contrast medium, contrast stain, contrastive, contrastive stress, contrasty, contrasuggestible
Origin of contrast medium
First recorded in 1950–55
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British Dictionary definitions for contrast medium
contrast medium
noun
med a radiopaque substance, such as barium sulphate, used to increase the contrast of an image in radiography
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Medical definitions for contrast medium
contrast medium
n.
A substance, such as barium or air, used in radiography to increase the contrast of an image. A positive contrast medium absorbs x-rays more strongly than the tissue or structure being examined; a negative contrast medium, less strongly.contrast agent
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for contrast medium
contrast medium
[ kŏn′trăst′ ]
A substance, such as barium or air, used in radiologic studies to increase the contrast of an image. In x-ray imaging, a positive contrast medium absorbs x-rays more strongly than the tissue or structure being examined; a negative contrast medium, less strongly.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.