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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.]
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
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.
Museum guests can also visit "Big Al," the most complete Allosaurus fossil ever discovered.
The skeleton of an Allosaurus nicknamed 'Young Al' estimated to sell for between PS300,000 and PS500,000 is displayed at Summers Place Auctions in Billingshurst, England.
The 9ft-long (2m) nearcomplete juvenile Allosaurus is the first predatory dinosaur skeleton to be sold in Britain, auctioneers said.
Utahns' Use of Diverted Water 82%--Agriculture 8%--Industry and Commercial 6%--Residential Outdoor Use 4%--Residential Indoor Use Envision Utah Water Allocation Scenarios Where Water Could Come From Allosaurus 34%--Conservation 28%--Agriculture 12%--Lake Powell Pipeline 8%--Bear River Project 18%--Local Projects Bonneville Trout 34%-Agriculture 13%--Lake Powell Pipeline 34%--Bear River Project 20%--Local Projects Seagull 17%--Conservation 26%--Agriculture 11%--Lake Powell Pipeline 28%--Bear River Project 17%--Local Projects Quaking Aspen 36%--Conservation 13%--Lake Powell Pipeline 33%--Bear River Project 19%--Local Projects Sego Lily 53%--Conservation 30%--Agriculture 17%--Local Projects Source: Envision Utah
But in my local library, AFTER school, where the books proscribed in school were the perfect prescription - big blowsy picture books, such as the one about dinosaurs that I borrowed again and again and again, even if the picture of the fight between the Allosaurus and the Stegosaurus gave me nightmares.
The Iguanodon, Utahraptor, Styracosaurus and Allosaurus are settling into their new home at Tenby Dinosaur Park after travelling 5,000 miles from Zigong City in China.
VANCOUVER -- In a story worthy of CSI: Jurassic Period, researchers have solved the mystery of what killed a predatory Allosaurus dinosaur 147 million years ago.
Ham, who accepted Peroutka's donation of an allosaurus skeleton to his Creation Museum in May, spoke at the Oct.
An impressive allosaur--recently donated to the museum--is believed to be one of the four best-preserved Allosaurus skulls ever discovered.
Ken Ham, the founder of the Creation Museum in Kentucky, will be unveiling a new exhibit of a 30-foot-long skeleton of an Allosaurus, News.