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al·lo·saur | \ ˈa-lə-ˌsȯr 
\
\Definition of allosaur
: any of a family (Allosauridae) of large theropod dinosaurs usually having three clawed digits on each arm and leg and living from the Late Jurassic to the early Cretaceous period especially : allosaurus
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Time Traveler for allosaur
The first known use of allosaur was circa 1934
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