monobasic mon·o·ba·sic (mŏn'ə-bā'sĭk)adj.
Having only one hydrogen ion to donate to a base in an acid-base reaction.
Having only one metal ion or positive radical.
Relating to an acid that contains only one hydrogen atom that can be replaced in an acid-base reaction. Hydrochloric acid (HCl) and nitric acid (HNO3) are monobasic acids.
Of or relating to a compound that contains one metal ion or positive radical.