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tannin

tan·nin

UK/ˈtænɪn/ uncommon

noun

1.

any of various complex phenolic substances of plant origin; used in tanning and in medicine

Synonyms

Origin

From French tannin, from Latin tannum (“oak bark”), from Gaulish *tannos (“oak”). Related to tan. By surface analysis, tann- + -in.

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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.