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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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