polymastodont

polymastodont, a. and n. Palæont.

(pɒlɪˈmæstədɒnt)

[f. mod.L. Polymastodon, -ont-, f. Gr. πολυ-, poly- + µαστός breast, nipple + ὀδούς tooth: cf. mastodon.]

a. adj. Belonging to the genus Polymastodon or family Polymastodontidæ of small extinct N. American marsupials, having numerous tubercles on the molar teeth. b. n. A marsupial of this genus or family.