ALKALOID • DICTIONARY ONE.COM • Definition of Alkaloid

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/ˈælkəlˌɔɪd/ Listen

Alkaloid

noun

Natural bases containing nitrogen found in plants.

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Etymology of 'Alkaloid'

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"Alkaloid" Quotes from Famous Books

... methadone (Dolophine, Methadose), and others (Darvon, Lomotil). Opium is the brown, gummy exudate of the incised, unripe seedpod of the opium poppy. Opium poppy (Papaver somniferum) is the source for the natural and semisynthetic narcotics. Poppy straw concentrate is the alkaloid derived from the mature, dried opium poppy. Qat (kat, khat) is a stimulant from the buds or leaves of Catha edulis that is chewed or drunk as tea. Quaaludes is the North American slang term for methaqualone, ...

— The 1998 CIA World Factbook • United States. Central Intelligence Agency.

... missionaries in South America learned from the natives the value of the so-called Peruvian bark in the treatment of ague; and in 1638, the Countess of Cinchon, Regent of Peru, having derived great benefit from the new remedy, it was introduced into Europe. Although its alkaloid, quinine, is perhaps the nearest approach to a medical specific, and has diminished the death rate in certain regions to an amazing extent, its introduction was bitterly opposed by many conservative members of the medical ...

— History of the Warfare of Science with Theology in Christendom • Andrew Dickson White

Words linked to "Alkaloid" : strychnine, pseudoephedrine, betaine, brucine, cinchonine, hyoscyamine, caffein, hyoscine, ergonovine, tubocurarine, ephedrine, curare, caffeine, rauwolfia, alkaloidal, pilocarpine, atropine, Ergotrate Maleate, ergotamine, scopolamine, organic compound, physostigmine, nicotine