/steg"euh sawr'/ , n.
a plant-eating dinosaur of the genus Stegosaurus, from the Jurassic and Cretaceous periods, having a heavy, bony armor and a row of bony plates along its back, and growing to a length of 20 to 40 ft. (6-12 m).
[ Stegosaurus (1877); see STEGO-, -SAUR ]