| 释义 | diacid
 diacid(daɪˈæsɪd) adj1.  (Chemistry) another word for diacidic2.  (Chemistry) (of a salt or acid) containing two acidic hydrogen atoms: NaH2PO4is a diacid salt of phosphoric acid. n (Elements & Compounds) an acid or salt that contains two acidic hydrogen atomsdi•ac•id(daɪˈæs ɪd)
 adj.    1.  capable of combining with two molecules of a monobasic acid.    2.  (of an acid or a salt) having two replaceable hydrogen atoms.  [1865–70]
 diacid
 diacid[dī′as·əd]  (chemistry) An acid that has two acidic hydrogen atoms; an example is oxalic acid.diacid
 di·ac·id(dī-as'id), Denoting a substance containing two ionizable hydrogen atoms per molecule; more generally, a base capable of combining with two hydrogen ions per molecule. |