Pā'le-o-thē'ri-ŭm, n.

noun

n. [Fr. paléothéri-on, fr. Gr. παλαιός, ancient, and θηρίον, beast.] (Paleon.) A pachyderm of several species, allied to the tapir, and found fossil in the eocene tertiary. [Written also palæothere and palæotherium.]

An illustration of a Paleotherium, a large, four-legged prehistoric mammal. — Paleotherium.