| NOUN | substance | catechin | a tannic acid that is extracted from black catechu as a white crystalline substance |
|---|
| Meaning | A tannic acid that is extracted from black catechu as a white crystalline substance. | |
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| Broader | tannin, tannic acid | Any of various complex phenolic substances of plant origin |
| Spanish | catequina | |
| Catalan | catequina | |
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