单词 | rheotannic |
释义 | rheotannic, a. Chem.|riːəʊˈtænɪk| [f. Gr. ῥῆον rheum2 + tannic.] The name of a variety of tannic acid found in rhubarb.
1883Encycl. Brit. XX. 530/1 The chief chemical constituents of Chinese rhubarb are chrysophan (C15H10O4), rheotannic acid (C20H26O14) [etc.]. |

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