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Any of various herbivorous dinosaurs of the order Ornithischia, having a pubic bone that points down and backward like that of modern birds, usually a horny beak or bill, and including the hadrosaurs and stegosaurs.
[From New Latin Ornīthischia, order name : ornith(o)- + Greek iskhion, hip joint.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Palaeontology) of, relating to, or belonging to the Ornithischia, an order of dinosaurs that included the ornithopods, stegosaurs, ankylosaurs, and triceratops
(Palaeontology) any dinosaur of the order Ornithischia; a bird-hipped dinosaur
[C20: from ornitho- + Greek ischion hip joint]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
or•nith•is•chi•an(ˌɔr nəˈθɪs ki ən)
1. any herbivorous dinosaur of the order Ornithischia, in which the pelvic structure resembles that of birds. Compare saurischian.adj.
2. belonging or pertaining to the Ornithischia.
[1900–05; < New Latin Ornithischi(a) < Greek ischium]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
One of the two main types of dinosaurs. Ornithischians have a pelvis similar to that of modern birds, and include all the plant-eating dinosaurs except the sauropods. They include armor-plated, horned, and duck-billed varieties. Compare saurischian.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||ornithischian - herbivorous dinosaur with a pelvis like that of a bird|
dinosaur - any of numerous extinct terrestrial reptiles of the Mesozoic era
order Ornithischia, Ornithischia - extinct terrestrial reptiles having bird-like pelvises: armored dinosaurs (thyreophorans); boneheaded and horned dinosaurs (marginocephalians); duck-billed dinosaurs (euronithopods)
armored dinosaur - dinosaurs having bony armour
bone-headed dinosaur - bipedal herbivorous dinosaurs with bony crowns
ceratopsian, horned dinosaur - any of several four-footed herbivorous dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia
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