theine
Americannoun
noun
Etymology
Origin of theine
First recorded in 1830–40; from New Latin the(a) “tea” ( see origin at tea) + -ine 2
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Stimulants.—Tea and coffee contain an alkaloid theine, besides volatile oils, tannin, &c.
From The Chemistry of Food and Nutrition by Duncan, A. W.
The active principle of tea is called theine; that of coffee, caffeine, and of cocoa, theobromine.
From A Practical Physiology by Blaisdell, Albert F.
The chemical principle of tea, namely theine, was subsequently tried and produced no effect.
From Insectivorous Plants by Darwin, Charles
It was claimed for this special model that it extracted only the theine, and not the tannin from the tea.
From The Art of Living in Australia ; together with three hundred Australian cookery recipes and accessory kitchen information by Mrs. H. Wicken by Muskett, Philip E.
In the first series of experiments, the daily allowance of food, though less copious on the tea days, was more nitrogenized, and nitrogen also was taken in as theine.
From The Atlantic Monthly, Volume 03, No. 15, January, 1859 by Various
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
