/mul'tee too berr"kyeuh lit, -layt', -tyoo-, mul'tuy-/ , n.
1. a rodentlike mammal of the extinct order Multituberculata, which lived from the late Jurassic Period to the Oligocene Epoch, reaching the size of a woodchuck and having molars with two or three rows of simple pointed cusps.
adj.
2. of or pertaining to the multituberculates.
3. having teeth with many simple, pointed cusps.
[ Multituberculata (1884); see MULTI-, TUBERCULATE, -ATA 1 ]