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Quinogen :: Quinogen (n.) A hypothetical radical of quinine and related alkaloids.

Morphine :: Morphine (n.) A bitter white crystalline alkaloid found in opium, possessing strong narcotic properties, and much used as an anodyne; -- called also morphia, and morphina..

Harmine :: Harmine (n.) An alkaloid accompanying harmaline (in the Peganum harmala), and obtained from it by oxidation. It is a white crystalline substance..

Aricine :: Aricine (n.) An alkaloid, first found in white cinchona bark..

Ricinine :: Ricinine (n.) A bitter white crystalline alkaloid extracted from the seeds of the castor-oil plant.

Glucoside :: Glucoside (n.) One of a large series of amorphous or crystalline substances, occurring very widely distributed in plants, rarely in animals, and regarded as influental agents in the formation and disposition of the sugars. They are frequently of a bitter taste, but, by the action of ferments, or of dilute acids and alkalies, always break down into some characteristic substance (acid, aldehyde, alcohol, phenole, or alkaloid) and glucose (or some other sugar); hence the name. They are of the natur

Wrightine :: Wrightine (n.) A rare alkaloid found in the bark of an East Indian apocynaceous tree (Wrightia antidysenterica), and extracted as a bitter white crystalline substance. It was formerly used as a remedy for diarrh/a. Called also conessine, and neriine..

Veratralbine :: Veratralbine (n.) A yellowish amorphous alkaloid extracted from the rootstock of Veratrum album.

Physostigmine :: Physostigmine (n.) An alkaloid found in the Calabar bean (the seed of Physostigma venenosum), and extracted as a white, tasteless, substance, amorphous or crystalline; -- formerly called eserine, with which it was regarded as identical..

Tropidine :: Tropidine (n.) An alkaloid, C8H13N, obtained by the chemical dehydration of tropine, as an oily liquid having a coninelike odor..

Quinicine :: Quinicine (n.) An uncrystallizable alkaloid obtained by the action of heat from quinine, with which it is isomeric..

Hyoscine :: Hyoscine (n.) An alkaloid found with hyoscyamine (with which it is also isomeric) in henbane, and extracted as a white, amorphous, semisolid substance..

Conhydrine :: Conhydrine (n.) A vegetable alkaloid found with conine in the poison hemlock (Conium maculatum). It is a white crystalline substance, C8H17NO, easily convertible into conine..

Violine :: Violine (n.) A pale yellow amorphous substance of alkaloidal nature and emetic properties, said to have been extracted from the root and foliage of the violet (Viola)..

Narceine :: Narceine (n.) 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..

Lupinine :: Lupinine (n.) An alkaloid found in several species of lupine (Lupinus luteus, L. albus, etc.), and extracted as a bitter crystalline substance..

Paytine :: Paytine (n.) An alkaloid obtained from a white bark resembling that of the cinchona, first brought from Payta, in Peru..

Lupuline :: Lupuline (n.) An alkaloid extracted from hops as a colorless volatile liquid.

Piperidine :: Piperidine (n.) An oily liquid alkaloid, C5H11N, having a hot, peppery, ammoniacal odor. It is related to pyridine, and is obtained by the decomposition of piperine..

Kairine :: Kairine (n.) A pale buff or white crystalline alkaloid derived from quinoline, and used as an antipyretic in medicine..

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