contrast stain


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con·trast stain

a dye used to color one portion of a tissue or cell that remained unaffected when the other part was stained by a dye of different color.
Synonym(s): differential stain

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.

contrast stain

A stain used to color one part of a tissue or cell, unaffected when another part is stained by another color.
See also: stain