metachromasia
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metachromasia
[met″ah-kro-ma´zhah]1. failure to stain true with a given stain.
2. the different coloration of different tissues produced by the same stain.
3. change of color produced by staining. adj., adj metachromat´ic.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
met·a·chro·ma·si·a
(met'ă-krō-mā'zē-ă),1. The condition in which a cell or tissue component takes on a color different from the dye solution with which it is stained. Synonym(s): metachromatism (2)
2. A change in the characteristic color of certain basic thiazine dyes, such as toluidine blue, when the dye molecules are bound in proximate array to tissue polyanionic polymers, such as glycosaminoglycans.
[meta- + G. chrōma, color]
Farlex Partner Medical Dictionary © Farlex 2012
metachromasia
The property of a tissue, due to the presence of sulfated polysaccharides and sialic acid mucins, which causes it to stain differently from the surrounding structures and from the colours used in the dye.Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
met·a·chro·ma·si·a
(met'ă-krō-mā'zē-ă)1. The condition in which a cell or tissue component takes on a color different from the dye solution with which it is stained.
Synonym(s): metachromatism (2) .
Synonym(s): metachromatism (2) .
2. A change in the characteristic color of certain basic thiazine dyes, such as toluidine blue, when the dye molecules are bound to tissue polyanionic polymers.
[meta- + G. chrōma, color]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
metachromasia
The variations in colour produced in different parts of a tissue when stained with a single dye.Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005