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• allosaurus
  allosaurus

  noun

  allosaur.
• Allosaurus
  Allosaurus

  noun

  the genus Antrodemus.

allosaurus

¹ American  

[al-uh-sawr-uhs] / ˌæl əˈsɔr əs /

noun

allosauruses plural

1. allosaur.

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Allosaurus ² American  

[al-uh-sawr-uhs] / ˌæl əˈsɔr əs /

noun

1. Older Use. the genus Antrodemus.

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allosaurus Scientific  

/ ăl′ə-sôr′əs /

1. 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.

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Other Word Forms

Derived Forms

• allosauroid
  adjective

Inflected Forms

Nouns

• allosauruses
  plural

Example Sentences

See Examples For:

allosaurus Allosaurus allosauruses

“Recent papers about allosaurus cannibalism are pretty interesting because it means, I think, they did not care if they were scavenging sauropods or anything, even other allosauruses, they were fine with it,” he said.

From Salon ● Nov. 2, 2023

It’s mounted in the Dinosaur Hall alongside the bones of an allosaurus, a contemporary predator.

From Los Angeles Times ● Aug. 19, 2022

Gualicho shinyae belongs to a different type of dinosaurs called allosaurus, which scientists previously saw with strong, full-sized arms.

From Time ● Jul. 14, 2016

A fossilised allosaurus skeleton went under the hammer today at Summers Place Auctions in West Sussex.

From The Guardian ● Nov. 25, 2015

While minute particles of dust and dirt rained down from the disappearing barrier, the foremost allosaurus opened its enormous jaws, uttered an eery scream and charged straight at the unbarred cell.

From Astounding Stories, March, 1931 by Various

Some Allosaurus fossils show signs of quite horrific injuries -- for instance caused by the spiked tail of a Stegosaurus -- that had healed and some which hadn't.

From Science Daily ● Feb. 1, 2026

All three skeletons - two Allosaurus and one Stegosaurus - were excavated from the same site in Carbon County, Wyoming and travelled to London in 12 crates, where they were rebuilt.

From BBC ● Dec. 12, 2024

And there were large ones prowling during the time examined in the study, including Allosaurus, Torvosaurus, Ceratosaurus and Saurophaganax.

From Reuters ● Nov. 16, 2023

Paleontologists have found these air sacs in flying reptiles called pterosaurs, in theropod dinosaurs such as Allosaurus, and in long-necked dinosaurs, including Diplodocus.

From Scientific American ● Mar. 31, 2023

Some such type of skin as this, in default of better evidence, we may ascribe to the Allosaurus.

From Dinosaurs With Special Reference to the American Museum Collections by Osborn, Henry Fairfield

“Some of these dinosaurs were the largest dinosaurs that ever lived. Just based on the calories alone, one dead sauropod would have enough calories to feed 20 or 30 allosauruses for several months.”

From Salon ● Nov. 2, 2023

“Recent papers about allosaurus cannibalism are pretty interesting because it means, I think, they did not care if they were scavenging sauropods or anything, even other allosauruses, they were fine with it,” he said.

From Salon ● Nov. 2, 2023

Beneath Utah’s surface, there’s a rich cache of dinosaur fossils, revealing details about prehistoric animals such as carnivorous allosauruses and spine-backed stegosauruses.

From National Geographic ● Oct. 19, 2023