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Caffeine   Listen
noun
Caffeine, caffein  n.  (Chem.) A white, bitter, crystallizable substance, found in coffee and tea. It is identical with the alkaloid theine from tea leaves, and with guaranine from guarana. It is responsible for most of the stimulating effect of coffee or tea.






Collaborative International Dictionary of English 0.48








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"Caffeine" Quotes from Famous Books



... proceeded, "can you let me have something to get a soda- caffeine at a drug store? This ain't a stall; I got a fierce headache. Come out with a dime, will you? My bean always hurts, but ...
— The Happy End • Joseph Hergesheimer

... are obtained from the seeds of Theobroma cacao. The active principle is theobromine, a substance which resembles the alkaloids of coffee and tea, except that it contains more nitrogen than theine and caffeine. Another important difference between cacao (not cocoa) and coffee or tea is the large amount of fat or cacao-butter ...
— Breakfast Dainties • Thomas J. Murrey

... pot on you. A, B1, B2, B12, C, ... and on down the alphabet and past it to A-G. All-purpose mineral capsules, presumably containing every element useful to the human body and possibly a couple that weren't. Two APC capsules. (Aspirin-Phenacetin-Caffeine. He liked the way those words sounded; very medicinal.) A milk-of-magnesia tablet, just in case. A couple of patent-mixture pills that were supposed to increase the bile flow. (MacNeil wasn't quite sure what bile was, but he was quite ...
— Cum Grano Salis • Gordon Randall Garrett

... Cocoa. The active principle of tea is called theine; that of coffee, caffeine, and of cocoa, theobromine. They also contain an aromatic, volatile oil, to which they owe their distinctive flavor. Tea and coffee also contain an astringent called tannin, which gives the peculiar bitter taste to the infusions ...
— A Practical Physiology • Albert F. Blaisdell

... coffee berry contains two substances, one the nitrogenized quality, caffeine, which is about one percent and is not altered in roasting, and the other a volatile oil which is developed in roasting and which gives the coffee its flavor. Dr. Julius Lehmann (Liebig's Annales LXXXVII. 205) says that coffee retards the waste tissues of the body and ...
— All About Coffee • William H. Ukers

... brain, and the whole nervous system, as a byproduct of its general awakening effect upon all the cells of the body, the pituitary probably stimulates the brain cells more directly, perhaps in the manner of caffeine or cocaine. ...
— The Glands Regulating Personality • Louis Berman, M.D.



Words linked to "Caffeine" :   caffeine intoxication, caffein, caffeine addict, alkaloid



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