counterstain
verb
coun·ter·stain
| \ ˈkau̇n-tər-ˌstān
\
\
counterstained;
counterstaining;
counterstains
Definition of counterstain
: to stain (something, such as a microscopy specimen) so as to color parts (such as the cytoplasm of cells) not colored by another stain (such as a nuclear stain)
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More Definitions for counterstain
counterstain
noun
coun·ter·stain
| \ -ˌstān
\
\
Medical Definition of counterstain
(Entry 1 of 2)
: a stain used to color parts of a microscopy specimen not affected by another stain
especially
: a cytoplasmic stain used to contrast with or enhance a nuclear stain
counterstain
transitive verbMedical Definition of counterstain (Entry 2 of 2)
: to stain (a tissue or microscopy specimen) with an additional usually contrasting color