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coun•ter•stain



Pronunciation: (
n.koun'tur-stān";
v.koun"tur-stān'),
[key] Histol.n.
a second stain of a different color applied to a microscopic specimen and used to color and contrast those parts not retaining the first stain.

v.t.
to treat (a microscopic specimen) with a counterstain.

v.i.
to become counterstained; take a counterstain.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

counterspycounterstamp
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