Any of various chiefly carnivorous saurischian dinosaurs of the large group Theropoda, characterized by bipedal locomotion, long jaws, and short forelimbs, and including allosaurus and velociraptor.
[From New Latin Thēropoda, suborder name : Greek thēr, wild beast; see ghwer- in the Appendix of Indo-European roots + New Latin -poda, -pod.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.