(?), a. [See Coffee.] (Chem.) Pertaining to, or obtained from, coffee.
[1913 Webster]

Caffeic acid, an acid obtained from coffee tannin, as a yellow crystalline substance, C9H8O4.
[1913 Webster]




(?), n. [Cf. F. cafine. See Coffee.] (Chem.) A white, bitter, crystallizable substance, found in coffee and tea. It is identical with the alkaloid theine from tea leaves, and with guaranine from guarana. It is responsible for most of the stimulating effect of coffee or tea.
[1913 Webster + WordNet 1.5]


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Sat 16th November 2019