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Any of various theropod dinosaurs of the group Ceratosauria of the Triassic and Jurassic Periods, often with a crest or horn on the head, and including coelophysis and dilophosaurus.

[From New Latin Cerātosauria, group name, after Cerātosaurus, type genus : Greek keras, kerāt-, horn; see ker- in Indo-European roots + Greek sauros, lizard.]
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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ceratosaur - primitive medium-sized theropodceratosaur - primitive medium-sized theropod; swift-running bipedal carnivorous dinosaur having grasping hands with sharp claws and a short horn between the nostrils; Jurassic in North America
bird-footed dinosaur, theropod, theropod dinosaur - any of numerous carnivorous dinosaurs of the Triassic to Cretaceous with short forelimbs that walked or ran on strong hind legs
suborder Ceratosaura - primitive saurischian dinosaurs
coelophysis - one of the oldest known dinosaurs; late Triassic; cannibalistic
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Kelvingrove has the best display in Scotland of objects from Ancient Egypt, including a real mummy - one of over 80 treasures loaned by the British Museum, London Then there's the four-metre Ceratosaur - are you brave enough to stare into its jaws - just one of the unbelievable variety of objects to gape at, from archaeology to world cultures, natural history to Sicilian soap operas, and the Wild West to art and design.
Our son was particularly taken with the real Second World War Spitfire soaring above a menagerie of record-breaking beasts in the West Court gallery, as well as a four-metre Ceratosaur dinosaur skeleton.