trivalent
a. (வேதி) மூவிணை திறமுடைய, மூன்று அணுக்களடன் இணையும் இயல்புகொண்ட.
Triv"a*lent, a. Etym: [Pref. tri- + L. valens, -entis, p. pr. See Valence.] (Chem.) Defn: Having a valence of three; capable of being combined with, substituted for, or compared with, three atoms of hydrogen; -- said of triad atoms or radicals; thus, nitrogen is trivalent in ammonia.