archosaur

ar·cho·saur

noun \ˈär-kə-ˌsȯr\

Definition of ARCHOSAUR

: any of a subclass (Archosauria) of reptiles comprising the dinosaurs, pterosaurs, and crocodilians

— ar·cho·sau·ri·an \ˌär-kə-ˈsȯr-ē-ən\ adjective or noun

Origin of ARCHOSAUR

New Latin Archosauria, from Greek archōn + sauros lizard

First Known Use: 1933

Rhymes with ARCHOSAUR

albacore, allosaur, alongshore, anaphor, anymore, at death's door, at one's door, Bangalore, bargain for, Barrymore, canker sore, carnivore, carnosaur, close the door, Coimbatore, come in for, commodore, comprador, consignor, corridor, cuspidor, devisor, dinosaur, door-to-door, double door, Ecuador, either-or, Eleanor, elector, endospore, evermore, except for, forest floor, franchisor, from the floor, furthermore, general store, go in for, guarantor, Gwalior, hackamore, hadrosaur, hellebore, herbivore, heretofore, humidor, in line for, Koko Nor, komondor, Labrador, licensor, Lipitor, louis d'or, madrepore, Mangalore, man-of-war, manticore, matador, meteor, micropore, Minotaur, mirador, more and more, nevermore, not long for, omnivore, open-door, out-of-door, package store, parador, petit four, picador, pinafore, piscivore, pompadour, Pompadour, predator, promisor, pterosaur, saddle sore, sagamore, Salvador, semaphore, servitor, standard score, stand up for, stegosaur, stevedore, stick up for, superstore, sycamore, take the floor, theretofore, to die for, troubadour, tug-of-war, two-by-four, uncalled-for, underscore, unlooked-for, vavasor, warrantor

archosaur

noun    (Concise Encyclopedia)

Any of the various advanced reptiles in the subclass Archosauria (“ruling reptiles”), including all thecodonts, pterosaurs, dinosaurs, birds, and crocodilians. The first known archosaurs appeared 242–227 million years ago during the Triassic Period. All early archosaurs possessed an ankle specialization that aided in upright posture, and most had long hindlegs and short forelimbs. Unlike the teeth of earlier reptiles, which were set in a shallow groove, the teeth of archosaurs were (and are) set in sockets.