diacid

adjective Chemistry.

1. capable of combining with two molecules of a monobasic acid.
2. (of an acid or a salt) having two replaceable hydrogen atoms.

adjective

1. another word for diacidic
2. (of a salt or acid) containing two acidic hydrogen atomsNaH 2 PO 4 is a diacid salt of phosphoric acid

noun

3. an acid or salt that contains two acidic hydrogen atoms