Definition of allosaurus
: any of a genus (Allosaurus) of very large carnivorous North American theropod dinosaurs of the late Jurassic period
Origin of allosaurus
New Latin, from Greek all- + sauros lizard
First Known Use: 1886
ALLOSAURUS Defined for Kids
Definition of allosaurus for Students
: a large meat-eating dinosaur related to the tyrannosaur
Learn More about allosaurus
Britannica.com: Encyclopedia article about "allosaurus"
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