Main Entry: san·guin·a·rine Pronunciation: sa[ng]-'gwin-&-"rEn, -r&n Function: noun : a poisonous bitter crystalline alkaloidC20H15NO5 obtained especially from the bloodroot (Sanguinaria canadensis)
sanguinarine san·guin·a·rine (sāng-gwĭn'ə-rēn', -rĭn) n. An alkaloid obtained from the bloodroot plant, Sanguinaria canadensis, used to treat and remove dental plaque.