• synonyms


  1. any gigantic carnivorous dinosaur of the genus Megalosaurus, of the Jurassic and early Cretaceous periods.
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Origin of megalosaur

From the New Latin word Megalosaurus, dating back to 1835–45. See megalo-, -saur
Related formsmeg·a·lo·sau·ri·an, adjective, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for megalosaur

Historical Examples

  • The teeth of this horned Dinosaur resemble those of the Megalosaur.

    Extinct Monsters

    H. N. Hutchinson

British Dictionary definitions for megalosaur


  1. any very large Jurassic or Cretaceous bipedal carnivorous dinosaur of the genus Megalosaurus, common in Europe: suborder Theropoda (theropods)
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Derived Formsmegalosaurian, adjective, noun

Word Origin

C19: from New Latin megalosaurus, from megalo- + Greek sauros lizard
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012