from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various extinct sheep-sized ruminant artiodactyls of the family Merycoidodontidae, widespread during the Eocene through the Miocene epochs in North America.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A member of the genus Oreodon.
from the GNU version of the Collaborative International Dictionary of English
- adj. Resembling, or allied to, the genus Oreodon.
from The Century Dictionary and Cyclopedia
- Of or pertaining to the Oreodontidæ.
From New Latin Oreodōn, type genus : Greek oros, ore-, mountain + Greek -odōn, -odont-, -odont.(American Heritage® Dictionary of the English Language, Fourth Edition)