Dictionary

cotylosaur

cotylosaur

noun co·ty·lo·saur \ˈkä-tə-lō-ˌsr, kə-ˈti-lə-\

Definition of COTYLOSAUR

:  any of an order (Cotylosauria) of extinct primitive reptiles of the Carboniferous to Triassic with short legs and massive bodies that were probably the earliest truly terrestrial vertebrate animals

Origin of COTYLOSAUR

ultimately from Greek kotylē + sauros lizard
First Known Use: 1895

Browse

Next Word in the Dictionary: CotylosauriaPrevious Word in the Dictionary: cotylophorousAll Words Near: cotylosaur
March 06, 2015
eolian Hear it
Deposited, produced, or eroded by wind
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears