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A very large allosaurid dinosaur of the genus Allosaurus of the late Jurassic Period, having a pair of bony bumps above the eyes. Also called allosaur.

[New Latin, genus name : Greek allos, other (because the imperfectly preserved vertebrae of the first specimen to be described appeared to have an hourglass shape unlike those of other dinosaurs); see allo- + Greek sauros, lizard.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.allosaurus - late Jurassic carnivorous dinosaurallosaurus - late Jurassic carnivorous dinosaur; similar to but somewhat smaller than tyrannosaurus
bird-footed dinosaur, theropod, theropod dinosaur - any of numerous carnivorous dinosaurs of the Triassic to Cretaceous with short forelimbs that walked or ran on strong hind legs
genus Allosaurus, genus Antrodemus - carnivorous dinosaur of North America; late Jurassic
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
If I am not mistaken, it is an Allosaurus of the Upper Jurassic, remains of which have been found in Central Wyoming, in the suburbs of New York."
At the Dino Live exhibition, families will come face to face with a Tyrannosaurus which stands an incredible four metres tall; a Pteranodon - a type of flying reptile; an Iguanodon; an Allosaurus; a Triceratops and a Carnotaurus - a 'meat eating bull', whilst learning some interesting facts along the way.
If you love dinosaurs, meet Roary the Allosaurus and discover footprints and the remains of skulls and teeth.
You can see Roary the allosaurus, along with other dinosaur fossils, a sabre-tooth tiger, giant ammonites, the Coseley Spider and Dudley Bug trilobites.
Dino Falls is at the side of the M60 and visitors play under the watchful eyes of the gigantic resident dinosaurs, including Tyrannosaurus Rex, Allosaurus, Baby Triceratops, Pterasuria, Velociraptors Raptors, Iguanodon, Diplodocus and Triceratops.
Allosaurus: With sharp claws and powerful teeth, these four-tonne dinosaurs thrived across the planet in the Jurassic period.
Allosaurus: With sharp claws and powerful teeth, these 4-tonne dinosaurs thrived in the Jurassic period.
Spanning 200 million years of history, the new show will contain eight specially created super-hunters, as well as five life-sized dinosaurs including a Quetzalcoatlus, an Allosaurus and, of course, a Tyrannosaurus Rex.
Back then, these rugged mountains were a lush, fern-lined plain, home to some of the largest creatures to tromp around North America: allosaurus, stegosaurus, diplodocus--a fearsome concentration of Jurassic beasts that makes Dinosaur one of the most important paleontological sites anywhere in the world.
The Morrison Fossil Area National Natural Landmark features fossils from several dinosaurs, including the Stegosaurus, Apatosaurus, Diplodocus and Allosaurus. In addition to the museum, visitors can also participate in a walking or shuttle tour,
But if other large dinosaurs like allosaurus had not gone extinct, there might not have been room at the top of the food chain for a creature like T.
>The 15ft tall Allosaurus has become a star attraction since it arrived at the Cwmbran property, with hundreds of people already stopping to get a glimpse.