American Heritage® Dictionary of the English Language, Fourth Edition
- n. A bitter crystalline alkaloid, C23H27NO8, obtained from opium and formerly used in medicine as a substitute for morphine.
Century Dictionary and Cyclopedia
- n. An alkaloid (C23H29NO9) contained in opium. It is sparingly soluble in water and alcohol. It forms fine silky inodorous bitter crystals. Narceine is sometimes used in medicine as a substitute for morphine.
- n. An acid coal-tar color of the monoazo type, prepared by combining diazotized sulphanilic acid with β-naph-thol and then treating the product with sodium bisulphite. It dyes wool orange in an acid bath, but is chiefly used in textile-printing.
- n. pharmacy An alkaloid contained in opium, occurring as fine white, silky crystals, slightly soluble in water, used as a substitute for morphine.
GNU Webster's 1913
- n. (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
- French narcéine : Greek narkē, numbness + French -ine, alkaloid; see -ine2. (American Heritage® Dictionary of the English Language, Fourth Edition)
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