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stegosaur

[ steg-uh-sawr ]
/ ˈstɛg əˌsɔr /
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noun

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 feet (6–12 meters).

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Origin of stegosaur

<New Latin Stegosaurus (1877); see stego-, -saur
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
  • The Stegosaur is one of the most singular and most familiar representatives of the group in the Jurassic.

British Dictionary definitions for stegosaur

stegosaur

stegosaurus (ˌstɛɡəˈsɔːrəs)

/ (ˈstɛɡəˌsɔː) /

noun

any quadrupedal herbivorous ornithischian dinosaur of the suborder Stegosauria, esp any of the genus Stegosaurus, of Jurassic and early Cretaceous times, having an armour of bony plates
C19: from Greek stegos roof + -saur
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

Scientific definitions for stegosaur

stegosaur
[ stĕgə-sôr′ ]

Any of several large herbivorous ornithischian dinosaurs of the group Stegosauria of the Jurassic and early Cretaceous Periods. The largest genus, Stegosaurus, had a tail with two horizontal spikes for defense, and an arched back with an alternating double row of large, triangular, upright bony plates. Stegosaurs grew over 6 m (20 ft) long, but had extremely small heads with brains the size of a walnut. The hindquarters were controlled by a neural ganglion in the hip region that was larger than the brain.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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