| 词汇 | tannin |
| 词根词缀 | 词源： vegetable substance capable of converting animal hide to leather, 1802, from Fr. tannin (1798), from tan "crushed oak bark containing tannin" (see tan). Tannic acid first recorded 1836, from Fr. acide tannique, inroduced 1834 by Pelouze. |
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