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theine
[ thee-een, -in ]
noun
- caffeine, especially in tea.
theine
/ ˈθiːiːn; -ɪn /
noun
- another name for caffeine, esp when present in tea
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Word History and Origins
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Word History and Origins
Origin of theine1
C19: from New Latin thea tea + -ine ²
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Example Sentences
It is remarkable also that tea has been found to contain an element called theine, which has the same quantity of nitrogen.
From Project Gutenberg
Chemical investigation indicates that caffeine and theine are the same and theobromine is a closely related substance.
From Project Gutenberg
Theine is no doubt a deadly poison, but we manage to drink it with tolerable safety in our tea and coffee.
From Project Gutenberg
The quantity of theine consumed in a cup of tea is about 4/5 of a grain, or ¼ of a medicinal dose.
From Project Gutenberg
The caffein or theine in tea is an alkaloid that has characteristic physiological properties.
From Project Gutenberg
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