Webster’s Revised Unabridged Dictionary · 1913
Polyatomic
Pol′y·a·tom′ic, a. [Poly- + atomic.] (Chem.) (a) Having more than one atom in the molecule; consisting of several atoms. (b) Having a valence greater than one. [Obs.]
Webster’s Revised Unabridged Dictionary · 1913
Pol′y·a·tom′ic, a. [Poly- + atomic.] (Chem.) (a) Having more than one atom in the molecule; consisting of several atoms. (b) Having a valence greater than one. [Obs.]