noun stego·saur \ˈste-gə-ˌsȯr\

Definition of stegosaur

  1. :  any of a suborder (Stegosauria) of quadrupedal ornithischian herbivorous dinosaurs chiefly of the Jurassic with strongly developed dorsal plates and spikes

Origin and Etymology of stegosaur

New Latin Stegosauria, from Stegosaurus

First Known Use: 1897

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