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
References in periodicals archive ?
Among the 102 sputum samples evaluated for the presence of AFB, positivity shown was almost similar using five different counter stains. Potassium permanganate and methylene blue showed maximum positivity (49.01%) while malachite green showed the least (43.13%) (Table 1).
Methylene blue counter stained smears showed lesser fluorescence of debris (10.8%) compared to potassium permanganate, toluidine blue and blue ink (21.6%, 45.1%, and 30.4%).
This study highlights on improvising the already established Auramine O staining method with minor modifications in counter staining and evaluating the efficacy of these counter stains. This would contribute in developing better fluorescent staining method in diagnosing AFB in sputum smears.
Representative images of the control retinal sections ((a) and (c) and detached retinas ((b) and (d)) labelled for calbindin (green) and counter stained with DAPI (blue).
Representative images of the control retinal sections ((a), (b), and (c)) and detached retinas ((d), (e), and (f)) labelled for PKC[alpha] (green), GFAP (red) counter stained with DAPI (blue).
The signals of CISH were detected as bright blue discoloration with blue stain and counter stained with nuclear red solution in referring to HTLV-1 at the sites of complementary sequences.
In Situ Hybridization (ISH) for Generic HTLV-1 Deduction Infiltrative Lymphoma Cancers Using DigoxigeninLabeled HTLV-1 Probes; Stained with (Blue) and Counter Stained by Nuclear Fast Red (Red).A)-NHL with Positive HTLV-1 -CISH Reaction with High Score and Strong Signal Intensity (40X).