a. and sb. Palæont. [f. mod.L. Tritylodōn, -ont- (f. Gr. τρι-, TRI- + τύλος knob + ὀδούς, ὀδοντ- tooth) + -OID.] a. adj. Resembling the genus Tritylodon, or belonging to the family Tritylodontidæ, of extinct monotreme mammals, found in the Triassic and Jurassic formations, and characterized by tritubercular molar teeth. b. sb. A member of this family.
In recent Dicts.
