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allosaurus in Science
allosaurus (āl'ə-sôr'əs) or allosaur
Any of various carnivorous dinosaurs of the genus Allosaurus of the late Jurassic and early Cretaceous Periods. Allosaurs were similar to but smaller than tyrannosaurs.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Examples from the Web for allosaurus
Historical Examples
  • When alive it was probably about half the bulk of the allosaurus mentioned above.

    Extinct Monsters H. N. Hutchinson
  • As compared with its predecessor allosaurus, the Tyrannosaurus is much more massively proportioned throughout.


    William Diller Matthew
  • Some such type of skin as this, in default of better evidence, we may ascribe to the allosaurus.


    William Diller Matthew
  • Immediately Nelson swiftly sighted at the other eye and fired, just as the allosaurus' shadow filled the threshold.

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