any of various reptiles of the extinct order Thecodontia, occurring in the late Permian to late Triassic periods and characterized by teeth set in sockets.
having the teeth set in sockets.
belonging to or pertaining to the Thecodontia.
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How to use thecodont in a sentence
A genus of "thecodont" Reptiles, so named in allusion to the fact that the teeth are sunk in distinct sockets.The Ancient Life History of the Earth | Henry Alleyne Nicholson
British Dictionary definitions for thecodont
(of mammals and certain reptiles) having teeth that grow in sockets
of or relating to teeth of this type
any extinct reptile of the order Thecodontia, of Triassic times, having teeth set in sockets: they gave rise to the dinosaurs, crocodiles, pterodactyls, and birds
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 thecodont
Any of various extinct primitive archosaurs of the order Thecodontia of the late Permian and Triassic Periods. Thecodonts had teeth in sockets and were probably ancestral to the dinosaurs, pterosaurs, and crocodilians.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.