tyrannosaur

 
Pronunciation: /tɪˈranəsɔː, tʌɪ-/
(also tyrannosaurus /tɪˌranəˈsɔːrəs/)

noun

  • a very large bipedal carnivorous dinosaur of the late Cretaceous period, with powerful jaws and small claw-like front legs.
    • Family Tyrannosauridae, infraorder Carnosauria, suborder Theropoda: several species, in particular Tyrannosaurus rex

Origin:

modern Latin, from Greek turannos 'tyrant' + sauros 'lizard', on the pattern of dinosaur