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[New Latin Allosaurus, genus name; see allosaurus.]


(ˈæləˌsɔː) or


(Palaeontology) any large carnivorous bipedal dinosaur of the genus Antrodemus (formerly Allosaurus), common in North America in late Jurassic times: suborder Theropoda (theropods)
[C19: from allo- + -saur]


(ˈæl əˌsɔr)

any carnivorous theropod dinosaur of the genus Antrodemus (formerly Allosaurus), from the late Jurassic Period of North America.
[< New Latin Allosaurus (1877). See allo-, -saur]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.allosaur - late Jurassic carnivorous dinosaurallosaur - 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 periodicals archive ?
There was a time when 50,000-pound Barosaurs and predatory Allosaurs walked the region we now call Utah.
Cleveland Lloyd Quarry has yielded up a dinosaur egg, more than 15,000 dinosaur bones, and 44 Allosaurs.
My ears perk up; allosaurs are my second-favorite dinosaur.