Lexic.us

Definition of Theine

1. n. See Caffeine. Called also theina.

Definition of Theine

1. Noun. caffeine when present in tea ¹

¹ Source: wiktionary.com

Definition of Theine

1. caffeine [n -S] - See also: caffeine

Medical Definition of Theine

1. See Caffeine. Synonym: theina. Origin: F. Theine, fr. NL. Thea. See Theiform. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Theine

Literary usage of Theine

Below you will find example usage of this term as found in modern and/or classical literature:

1. Proceedings of the American Association for the Advancement of Science (1891)
"THE estimation of theine has received more attention from analysts than its value, from a practical point of view, with reference to the quality of teas, ..."

2. First Principles of Chemistry: For the Use of Colleges and Schools by Benjamin Silliman (1848)
"theine is a feeble base, and its salts arc easily decomposed ... As these substances resemble each other only in containing theine, it is probable that they ..."

3. First Principles of Chemistry by Benjamin Silliman (1859)
"It is readily soluble in hot water and alcohol, and may be volatilized without decomposition; its taste is slightly bitter theine is a feeble base, ..."

4. First Principles of Chemistry, for the Use of Colleges and Schools by Benjamin Silliman (1860)
"It is readily soluble in hot water and alcohol, and may be volatilized without decomposition ; its taste is slightly bitter, theine is a ..."

5. Foods: Their Composition and Analysis by Alexander Wynter Blyth, Meredith Wynter Blyth (1903)
"theine crystallises from an aqueous solution with 1 molecule of water ... The melting-point of theine is somewhere between 177° and 228° C. theine possesses ..."

6. Animal Chemistry: Or Organic Chemistry in Its Application to Physiology and by Justus Liebig, William Gregory, John White Webster (1843)
"Yet recent researches have shown, in such a manner as to exclude all doubt, that caffeine, the peculiar principle of coffee, and theine, that of tea, are, ..."

7. Foods: Their Composition and Analysis: A Manual for the Use of Analytical by Alexander Wynter Blyth (1896)
"The modern processes for extracting theine fall chiefly under ... Extraction by treating a decoction of the theine-containing substances with lime or burnt ..."

8. Animal Chemistry: Or, Organic Chemistry in Its Application to Physiology and by Justus Liebig (1842)
"Without entering minutely into the medicinal action of caffeine (theine), it will surely appear a most striking fact, even if we were to deny its influence ..."

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