brontotherePronunciation: /ˈbrɒntəʊθɪə/Definition of brontothere noun a large ungulate mammal of the Eocene epoch with a horn-like bony growth on the nose. Family Brontotheriidae, order Perissodactyla Origin:modern Latin, from Greek brontē 'thunder' + thērion 'wild beast'brontothere in other Oxford dictionaries Definition of brontothere in the US English dictionary
