from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various carnivorous dinosaurs of the late Jurassic and early Cretaceous Periods, similar to but smaller than the tyrannosaur.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of several carnivorous dinosaurs, of the superfamily Allosauroidea, from the late Jurassic and early Cretaceous periods
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. late Jurassic carnivorous dinosaur; similar to but somewhat smaller than tyrannosaurus
New Latin Allosaurus, genus name : Greek allos, other; see allo- + Greek sauros, lizard.(American Heritage® Dictionary of the English Language, Fourth Edition)