triatomic
a. மூவணுக்கள் உடைய.
Tri`a*tom"ic, a. Etym: [Pref. tri- + atomic.] (Chem.) (a) Having three atoms; -- said of certain elements or radicals. (b) Having a valence of three; trivalent; sometimes, in a specific sense, having three hydroxyl groups, whether acid or basic; thus, glycerin, glyceric acid, and tartronic acid are each triatomic.