The Collaborative International Dictionary
Tetravalent
Tetravalent \Te*trav"a*lent\, a. [Tetra- + L. valens, -entis, p. pr.] (Chem.) Having a valence of four; tetratomic; quadrivalent.
Wiktionary
tetravalent
a. (context chemistry English) having a valence of 4
WordNet
tetravalent
adj. haveing a valence of four
Usage examples of "tetravalent".
It is normally tetravalent, and is used in transistors, high-powered photoelectric eyes, and, with silicon, in lenses for infrared equipment.