ba·lu·chi·the·ri·um \bəˌlüchəˈthirēəm\noun Etymology: New Latin, from Baluchistan (country) + New Latin -therium 1.capitalized: a genus of very large Oligocene mammals related to the rhinoceros the remains of which are found in central Asia 2.pluralbaluchithe·ria\-ēə\: an animal or fossil of the genus Baluchitherium