ornithischian Hear it!

ornithischian definition

or·nith·is·chian (ôr′nə t̸his′kē ən)

noun

any of an order (Ornithischia) of plant-eating dinosaurs with a birdlike pelvic structure, including the stegosaurus and triceratops

adjective

of the ornithischians

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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