Archosaur Definition

ärkə-sôr
noun
Any of various vertebrates of the group Archosauria, having a single opening in each side of the skull in front of the eye socket, and including the dinosaurs, birds, pterosaurs, and modern crocodilians.
American Heritage
Any of a subclass (Archosauria) of reptiles, including the dinosaurs, pterosaurs, crocodilians, and thecodonts.
Webster's New World

(biology) Any reptile of the taxon Archosauria; includes the extinct dinosaurs, plesiosaurs, pterosaurs and ichthyosaurs and the modern crocodiles.

Wiktionary
Synonyms:

Other Word Forms of Archosaur

Noun

Singular:
archosaur
Plural:
archosaurs

Origin of Archosaur

  • From New Latin Archosauria (“taxonomic division of extinct reptiles"), from ἄρχων (archōn, “leader") + σαύρα (saura, “lizard")

    From Wiktionary

  • New Latin Archosauria subclass name Greek arkhos ruler Greek sauros lizard

    From American Heritage Dictionary of the English Language, 5th Edition

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