Univalent
Pronunciation : U*niv"a*lent
Part of Speech : a.
Etymology : [Uni- + L. valens, -entis, p. pr. See Valence.] (Chem.)
Definition : Defn: Having a valence of one; capable of combining with, or of being substituted for, one atom of hydrogen; monovalent; -- said of certain atoms and radicals.
Source : Webster's Unabridged Dictionary, 1913