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Definition of Caffein
1. Noun. A bitter alkaloid found in coffee and tea that is responsible for their stimulating effects.
Substance meronyms: Coffee, Java, Tea
Generic synonyms: Alkaloid
Derivative terms: Caffeinic
Definition of Caffein
1. Noun. (alternative spelling of caffeine) ¹
¹ Source: wiktionary.com
Definition of Caffein
1. caffeine [n -S] - See also: caffeine
Lexicographical Neighbors of Caffein
Literary usage of Caffein
Below you will find example usage of this term as found in modern and/or classical literature:
1. Science by American Association for the Advancement of Science (1912)
"One can not help feeling, on looking through these two bulletins filled with a
wealth of detailed investigation on so important a drug as caffein, ..."
2. A Manual of Pharmacology and Its Applications to Therapeutics and Toxicology by Torald Hermann Sollmann (1922)
"Guaraná, USP—A dried paste consisting chiefly of the crushed seeds of Paullinia
Cupana, yielding not less than 4 per cent, of caffein. Dose, 2 Gm., 30 gr., ..."
3. All about Coffee by William Harrison Ukers (1922)
"caffein accelerates the pulse and slightly raises blood pressure. ... caffein and
its allies form a very important group of diuretics. ..."
4. The Practitioner by Gale Group, ProQuest Information and Learning Company (1884)
"caffein is best administered in small and frequently repeated doses, and it
differs from digitalis in its more rapid action and in not having any cumulative ..."
5. Journal of the American Chemical Society by American Chemical Society (1898)
"THE investigation of the caffein compound in kola conducted by us last year'
showed us that it ... of caffein instead of a glucoside as formerly supposed. ..."
6. The American Journal of Psychology by Granville Stanley Hall, Edward Bradford Titchener (1912)
"first covering 28 days of caffein alkaloid experiments, and the second covering
7 days of experiments with syrups and carbonated water, with and without ..."
7. The School of Mines Quarterly by Columbia University School of Chemistry (1898)
"Contains 50% caffein, and is not the same as either No. ... -—White crystalline
powder, combining the action of caffein with the antiseptic effect of the ..."
8. Beverages and Their Adulteration: Origin, Composition, Manufacture, Natural by Harvey Washington Wiley (1919)
"The only alkaloid which is employed at the present time in the preparation of
these beverages is caffein. caffein is an alkaloid of somewhat restricted ..."