adj. (of an acid) containing two replaceable hydrogen atoms
adj. (of a salt) having two atoms of a univalent metal
the GNU version of the Collaborative International Dictionary of English
adj. Having two acid hydrogen atoms capable of replacement by basic atoms or radicals, in forming salts; bibasic; -- said of acids, as oxalic or sulphuric acids. Cf. diacid, bibasic.
The Century Dictionary and Cyclopedia
Same as bibasic.
Word Usage
"Acids yielding two hydrogen ions in solution are called dibasic acids."