Definition of "ornithischian" [ornithischian]

• A dinosaur of the order Ornithischia, having a pelvic structure similar to that of birds. (noun)
• Of, belonging to, or characteristic of the order Ornithischia. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Named Fruitadens haagarorum, this tiny ornithischian was likely an omnivore, like other heterodontosaurids."
• "A tiny new "feathered" ornithischian dinosaur from China, the Early Cretaceous heterodontosaurid Tianyulong confuciusi."
• "Oh, I've also slowly been making my way through the new (September) issue of the Journal of Vertebrate Paleontology, and have read, over the past few days, "A new ornithischian dinosaur from the Lower Cretaceous Kuwajima Formation of Japan," "The anatomy and systematics of Colepiocephale lambei [Dinosauria: Pachychephalosauridae]," and "Rapid somatic expansion causes the brain to lag behind: the case of the brain and behavior of New Zealand's Haast's Eagle [Harpagornis moorei].""