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Dinosaur

An extinct type of reptile that first appeared about 220 million years ago and died out suddenly about 65 million years ago.

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  • Part of Speech: noun
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  • Blossary:
  • Industry/Domain: Animals
  • Category: Reptiles
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Related terms

dinosaur
Language; Idioms

A dinosaur is a person who is thought to be too old for their position.

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Any of the Mesozoic diapsids (once considered to be reptiles) belonging to the groups designated as ornithischians and saurischians.

dinosaur
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An extinct type of reptile that first appeared about 220 million years ago and died out suddenly about 65 million years ago.

dinosaur
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Although dinosaurs are clearly reptiles, there has been a tendency in recent years to recast their biology and physiology as birdlike or mammallike. The scientific case for ...

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dinosaur
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General name for two extinct orders of reptiles from the Mesozoic era: Saurischia and Ornithischia.

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