- denoting or of an acid with two hydrogen atoms either or both of which may be replaced by basic radicals or atoms to form a salt
- having two atoms of a monovalent metal
- Of or relating to salts or acids forming salts with two atoms of a univalent metal. Na2HPO4 is an example of a dibasic salt.
- Relating to an acid that contains two hydrogen atoms that can be replaced by metal ions. Sulfuric acid (H2SO4) is a dibasic acid. The hydrogens can be replaced by sodium and hydrogen to form sodium hydrogen sulfate (NaHSO4) or by two sodium atoms to form sodium sulfate (Na2SO4).
- Relating to a compound that contains two basic monovalent groups or atoms.