Definition of Ornithomimus in US English:

Ornithomimus

noun

  • A genus of small bipedal theropod dinosaurs of the late Cretaceous period, with a slender, somewhat ostrich-like body; (also ornithomimus) a dinosaur of this genus.

Origin

Late 19th century. From scientific Latin Ornithomimus, genus name from ancient Greek ὀρνιθο- + classical Latin mīmus.

Pronunciation

Ornithomimus

/ˌɔːnɪθə(ʊ)ˈmʌɪməs/