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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



... tea or coffee. And that's all. In just about an hour I hear the old pencil stop scratching and look over. You've got out a book and you're 'looking up' something. Then you're reading. Then yawns—then bed and a great tossing about because you're all full of caffeine and can't sleep. Two weeks later the ...
— The Beautiful and Damned • F. Scott Fitzgerald

... of digitalis, there may be only a moderate gradual rise in arterial pressure, but not much change in venous pressure. Venous pressure was not much affected by small doses of epinephrin, but with large doses it rose from 10 to 80 mm. Pituitary extract acts somewhat similarly to epinephrin. Caffein, though raising the arterial pressure, did not influence the venous pressure. Strychnin did not raise either pressure until the dose was sufficient to cause muscular contractions. They found that the nitrites caused a fall in venous pressure as well as arterial pressure, although the heart might ...
— DISTURBANCES OF THE HEART • OLIVER T. OSBORNE, A.M., M.D.

... found in nature in but a few plants, as in tea, in coffee, (then termed caffein), in Mat'e (Paraguay or Brazilian tea), and in the Kola nut of Africa. A very similar principle, having analogous properties, but containing more ...
— Tea Leaves • Francis Leggett & Co.

... it is inhaled, but care should be taken that too much is not suddenly inhaled. If the animal is unconscious, hypodermic injections of stimulants are indicated, such as 6 drams of camphorated oil in one dose, subcutaneously, or 20 grains of caffein or 1/2 ...
— Special Report on Diseases of Cattle • U.S. Department of Agriculture

... spot. There were no reflexes, no pulse, no respiration or heart-beat. Yet she was alive—existing without oxygen—an impossibility as we had always supposed. Seeing no actual evidence of death, the physicians injected camphor and caffein and took other restorative steps, with the result that in an hour the woman breathed again! Twenty-four hours later she was conscious and able to speak. It is assumed that the poison and the cold night air together had paralyzed her vasomotor nerves and reduced her body to ...
— The Grey Room • Eden Phillpotts



Words linked to "Caffeine" :   coffee, java, tea, alkaloid, caffeine addict, caffein



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