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allosaurus

1 American  
[al-uh-sawr-uhs] / ˌæl əˈsɔr əs /

noun

plural

allosauruses

  1. allosaur.

Allosaurus 2 American  
[al-uh-sawr-uhs] / ˌæl əˈsɔr əs /

noun

  1. Older Use. the genus Antrodemus.

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.

Other Word Forms

  • allosauroid adjective

Vocabulary lists containing allosaurus

Paleontology: Dinosaurs - Introductory

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Paleontology: Dinosaurs - Middle School and High School

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

I still remember being wowed by a stegosaurus trying to fend off an allosaurus and being sad about a T. rex that died trying to protect her babies.

From Los Angeles Times • May 15, 2025

He definitely did not lead an expedition that uncovered an allosaurus skull.

From Salon • Jun. 25, 2021

Ms. Walter also appeared on “Law & Order,” “Touched by an Angel,” “One Life to Live,” “Murder, She Wrote,” “The Love Boat” and “Mannix” and voiced an anthropomorphic allosaurus on the puppet sitcom “Dinosaurs.”

From Washington Post • Mar. 25, 2021

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

Casting a quick glance over his shoulder, Nelson's blood froze to find an allosaurus not more than seventy yards behind, and making terrible exertions to close that slender gap!

From Astounding Stories, March, 1931 by Various

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.