D defs.my
Entry 1 sense Webster, 1913

Biacid

· Bi·ac·id · IPA /baɪˈæsɪd/
01 a. Having two hydrogen atoms which can be replaced by negative atoms or radicals to form salts; -- said of bases. See Diacid.
  1. 1.
    Having two hydrogen atoms which can be replaced by negative atoms or radicals to form salts; -- said of bases. See Diacid.(Chem.) See: Diacid