morphia n 1: an alkaloid narcotic drug extracted from opium; a powerful, habit-forming narcotic used to relieve pain [syn: {morphine}, {morphia}]
Morphia \Mor"phi*a\, n. [NL.] (Chem.) Morphine. [1913 Webster]
Morphine \Mor"phine\, n. [From Morpheus: cf. F. morphine.] (Chem.) A bitter white crystalline alkaloid found in opium, possessing strong narcotic properties, and much used as an anodyne; -- called also {morphia}, and {morphina}. [1913 Webster]