| narcotine | <chemistry> An alkaloid found in opium, and extracted as a white crystalline substance, tasteless and less poisonous than morphine. Synonym: narcotia. Origin: Cf. F. Narcotine. Cf. Cotarnine. Source: Websters Dictionary (01 Mar 1998) |
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| dl-narcotine | <chemistry> An alkaloid existing in small quantities in opium. Origin: Gr. Gignwskein to know + E. Opium?. Source: Websters Dictionary (01 Mar 1998) |
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| l-alpha-narcotine | <chemical> A naturally occurring opium alkaloid that is a centrally acting antitussive agent. Pharmacological action: antitussive agents. Chemical name: 1(3H)-Isobenzofuranone, 6,7-dimethoxy-3-(5,6,7,8-tetrahydro-4-methoxy-6-methyl-1,3-dioxolo(4,5-g)isoquinolin-5-yl)-, (S-(R*,S*))- (12 Dec 1998) |