Also found in: Dictionary, Encyclopedia, Wikipedia.
Parent substance of the natural dye orcein, obtained from certain colorless lichens (Lecanora tinctoria, Rocella tinctoria) by treatment with boiling water; used as an external antiseptic in various skin diseases and in chemistry as a reagent for pentoses.
Farlex Partner Medical Dictionary © Farlex 2012
orcin, orcinol (or′sĭn) (-ol″)
A chemical derived from lichens and used as a histological stain.
CAS # 504-15-4
Medical Dictionary, © 2009 Farlex and Partners