| NOUN | substance | gallic acid | a colorless crystalline acid obtained from tannin |
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| Meaning | A colorless crystalline acid obtained from tannin. | |
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| Broader | acid | Any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt |
| Spanish | ácido gálico | |
| Catalan | àcid gàl·lic | |
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