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Any of various herbivorous ornithischian dinosaurs of the group Stegosauria of the Jurassic and Cretaceous Periods, having rows of upright plates or spikes on the back, spikes on the tail, and a small head with a beaked mouth. Also called stegosaur.
[From New Latin Stegosauria, group name, from Stegosaurus, type genus; see stegosaurus.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Palaeontology) a variant of stegosaur
having the characteristics of a stegosaur
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014