allosaur

al·lo·saur  (l-sôr) or al·lo·sau·rus (l-sôrs)

n.

Any of various carnivorous dinosaurs of the late Jurassic and early Cretaceous Periods, similar to but smaller than the tyrannosaur.

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[New Latin Allosaurus, genus name : Greek allos, other; see allo- + Greek sauros, lizard.]

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allosaur [ˈæləˌsɔː], allosaurus [ˌæləˈsɔːrəs]

n

(Earth Sciences / Palaeontology) any large carnivorous bipedal dinosaur of the genus Antrodemus (formerly Allosaurus), common in North America in late Jurassic times: suborder Theropoda (theropods)

[from allo- + -saur]

Thesaurus

Noun

1.

allosaur - late Jurassic carnivorous dinosaur; similar to but somewhat smaller than tyrannosaurus allosaurus 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