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thecodont

[thee-kuh-dont]
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noun
  1. 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.
adjective
  1. having the teeth set in sockets.
  2. belonging to or pertaining to the Thecodontia.

Origin of thecodont

1830–40; < New Latin, equivalent to Greek thḗk(ē) case, chest (see theca) + -odont- -odont; so named from the sockets in which the marginal teeth were implanted
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for thecodont

Historical Examples

  • 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

thecodont

adjective
  1. (of mammals and certain reptiles) having teeth that grow in sockets
  2. of or relating to teeth of this type
noun
  1. 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

Word Origin

C20: New Latin Thecondontia, from Greek thēkē case + -odont
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

thecodont in Science

thecodont

[thēkə-dŏnt′]
  1. 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.