plural noun Ar·cho·sau·ria \ˌär-kə-ˈsȯr-ē-ə\

Definition of Archosauria

  1. :  a large subclass of Reptilia comprising the dinosaurs, pterosaurs, and crocodilians all distinguished by possessing temporal openings separated from each other by a postorbitosquamosal arch


\¦ar-kə-¦sȯr-ē-ən\ play adjective or noun

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Origin and Etymology of archosauria

New Latin, from archo- (from Greek archōn) + -sauria

Seen and Heard

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to cast off or become cast off

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