from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various extinct herbivorous hoofed mammals of the genus Brontotherium and related genera, of the Eocene and Oligocene epochs, resembling the rhinoceros.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A member of the Titanotheriidae, a family of extinct mammals related to horses and rhinoceroses.
from The Century Dictionary and Cyclopedia
- n. Any individual of the genus Titanotherium or member of the family Titanotheriidæ or superfamily Titanotheroidæ.
New Latin Tītānothērium, genus name : Greek Tītān, Titan + Greek thērion, wild beast; see treacle.(American Heritage® Dictionary of the English Language, Fourth Edition)