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.
The active principles of the leaves are theine and a volatile oil, to which latter the flavor and odor are due.
From Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture by Saunders, William
The chemical principle of tea, namely theine, was subsequently tried and produced no effect.
From Insectivorous Plants by Darwin, Charles
It contains the same active principle, theine as tea and coffee, but not their volatile and empyreumatic oils.
From Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture by Saunders, William
The active principle of tea is called theine; that of coffee, caffeine, and of cocoa, theobromine.
From A Practical Physiology by Blaisdell, Albert F.
Half-minims were placed, in each case; on the discs of at least six leaves, but no inflection was caused, except perhaps a very slight amount by the theine.
From Insectivorous Plants by Darwin, Charles
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.
