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ceratosaur

[ser-uh-tuh-sawr]
See more synonyms on Thesaurus.com
noun
  1. a carnivorous, swift-running North American theropod dinosaur of the genus Ceratosaurus and closely related genera, of the Jurassic Period, having a large skull with a short horn between the nostrils and a bony knob in front of each eye, and reaching a length of 20 feet (6.1 meter).

Origin of ceratosaur

1884; < New Latin Ceratosaurus; see cerato-, -saur
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018