poly·ac·id /ˈpɑlɪˌæsəd/ 名詞
多元酸,多(價)酸的
Pol·y·ac·id a. Chem. Capable of neutralizing, or of combining with, several molecules of a monobasic acid; having more than one hydrogen atom capable of being replaced by acid radicals; -- said of certain bases; as, calcium hydrate and glycerin are polyacid bases.
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