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

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for megalosaur

Historical Examples of megalosaur

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

    Extinct Monsters

    H. N. Hutchinson

British Dictionary definitions for megalosaur



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

Word Origin for megalosaur

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