Definition of pelycosaur
: any of an order (Pelycosauria) of primitive chiefly Permian quadruped synapsid reptiles often having extreme development of the dorsal vertebral processes
- Trending Now: More Trending:
- asylum insubordinate promulgate epochal clemency
- ALL
What's Trending Now
More Trending Words
Origin and Etymology of pelycosaur
ultimately from Greek pelyc-, pelyx bowl + sauros lizard
Learn More about pelycosaur
-
Britannica.com: Encyclopedia article about pelycosaur
Seen and Heard
What made you want to look up pelycosaur? Please tell us where you read or heard it (including the quote, if possible).
