Meaning of counterstain
Pronunciation: (n.koun'tur-stān"v.koun"tur-stān'), [key]
— Histol. 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.
- to treat (a microscopic specimen) with a counterstain.
- to become counterstained; take a counterstain.
- counterstain (Thesaurus)