Dictionary

archosaur

noun ar·cho·saur \ˈär-kə-ˌsr\

Definition of ARCHOSAUR

:  any of a subclass (Archosauria) of reptiles comprising the dinosaurs, pterosaurs, and crocodilians
ar·cho·sau·ri·an \ˌär-kə-ˈsr-ē-ən\ adjective or noun
ADVERTISEMENT

Origin of ARCHOSAUR

New Latin Archosauria, from Greek archōn + sauros lizard
First Known Use: 1933

Browse

Next Word in the Dictionary: ArchosauriaPrevious Word in the Dictionary: arch orderAll Words Near: archosaur
ADVERTISEMENT
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