counterstain

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counterstain

 [kown´ter-stān]
a stain applied to render the effects of another stain more discernible.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

count·er·stain

(kown'ter-stān),
A second stain of different color having affinity for tissues, cells, or parts of cells other than those taking the primary stain used to render more distinct the parts taking the first stain.
Farlex Partner Medical Dictionary © Farlex 2012

counterstain

(koun′tər-stān′)
n.
A stain of a contrasting color used to color the components in a microscopic specimen that are not made visible by the principal stain.
tr.v. counter·stained, counter·staining, counter·stains
To color (a microscopic specimen) with such a stain.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

count·er·stain

(kown'tĕr-stān)
A second stain of a different color, having affinity for tissues, cells, or parts of cells other than those taking the primary stain, used to render more distinct the parts taking the first stain.
Synonym(s): contrase stain.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012