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


(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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
There's also a very special star too - the Allosaur from last Christmas' The Ballad of Big Al, as well as a plethora of other weird and wonderful creatures, including hybrid human-monkey characters and an Entelodont which is a kind of ferocious giant pig, brought to life by the computer animators who created Walking with Dinosaurs and its recent follow-up, Walking with Beasts.
The elegant Leaellynasaura live in clans on the polar forest floor, the highly muscular herbivore Muttaburrasaurus migrates in and out of the Antarctic Circle, exploiting summer plant growth, but neither are safe from the dwarf Allosaur, a large and effective predator.
Arisen, we flew with triceratops, glide-walked with the allosaur. We never left Skull Island where we were truly born in order to wind up side by side the day I was married and Ray Harryhausen as best man.
* Notable species of the dinosaur fauna included: a larger predatory allosaur, Vulconadon karibaensis; a giant sauropod, Brachiosaurus sp.; and the diminutive coelosaurian, Syntarsus rhodesiensis, the species superbly documented in the world famous display in Bulawayo's Natural History Museum.
Today, at the Visitor Center you can see a complete Allosaur skeletal reconstruction and a Stegosaur wall mount.