Etymology
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ceratosaurus (n.)

meat-eating dinosaur of the Jurassic period, 1884, from cerato- "horn" + -saurus. So called for the small horn on its nose.

updated on October 27, 2017

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Definitions of ceratosaurus from WordNet

ceratosaurus (n.)
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;
Synonyms: ceratosaur
From wordnet.princeton.edu, not affiliated with etymonline.