Narceine \Nar"ce*ine\, n. [L. narce numbness, torpor, Gr. ?????:
cf. F. narc['e]["i]ne.] (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]