from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A reptile of the subclass Archosauria, which includes the dinosaurs, pterosaurs, and the modern crocodilians.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any reptile of the taxon Archosauria; includes the extinct dinosaurs, plesiosaurs, pterosaurs and ichthyosaurs and the modern crocodiles
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts
New Latin Archosauria, subclass name : Greek arkhos, ruler + Greek sauros, lizard.(American Heritage® Dictionary of the English Language, Fourth Edition)
From New Latin Archosauria ("taxonomic division of extinct reptiles"), from ἄρχων (archōn, "leader") + σαύρα (saura, "lizard") (Wiktionary)