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Related to oreodont: Merycoidodontoidea
Any of various extinct sheep-sized ruminant artiodactyls that were widespread during the Eocene through the Pliocene Epochs in North America. They are usually placed in the group Oreodontoidea.
[From New Latin Oreodōn, type genus : Greek oros, ore-, mountain + Greek -odōn, -odont-, -odont.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Palaeontology) an extinct prehistoric mammal with hog-like qualities
(Palaeontology) relating to the family Oreodontidae
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014