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archosaur

Pronunciation: /ˈɑːkəsɔː/
Definition of archosaur

noun

Zoology & Palaeontology
  • a reptile of a large group that includes the dinosaurs and pterosaurs and is represented today only by the crocodilians.
    • Subdivision Archosauria, subclass Diapsida

Origin:

1930s: from modern Latin Archosauria, from Greek arkhos 'chief' or arkhōn 'ruler' + -saur

archosaur in other Oxford dictionaries

Definition of archosaur in the US English dictionary
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