narceine

n. [ L. narce numbness, torpor, Gr. &unr_;&unr_;&unr_;&unr_;&unr_;: cf. F. narcéïne. ] (Chem.) An alkaloid found in small quantities in opium, and extracted as a white crystalline substance of a bitter astringent taste. It is a narcotic. Called also narceia. [ 1913 Webster ]