orcein /or·ce·in/ (or-se´in) a brownish-red coloring substance obtained from orcinol; used as a stain for elastic tissue.
or·ce·in (ôr s - n)n. A natural dye derived from orcinol and used in various histologic staining methods as a purple dye complex. |
orcein
a brownish-red coloring substance obtained from orcinol; used as a stain for elastic tissue.
orcein-Giemsa stain
useful because of its capacity to stain elastic fibers, the metachromatic granules of mast cells, and differentiates smooth muscle from collagen.
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