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1. (n.) plesiosaur
any extinct marine reptile of the Jurassic and Cretaceous suborder Plesiosauroidea, having a thick body and paddlelike limbs.
Etymology: (< NL Plesiosaurus (1821) genus name < Gk plēsí(os) near, close to +-o- -o - +saûros -saur)
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| Definition of 'plesiosaur' |
Princeton's WordNet |
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1. (noun) plesiosaur, plesiosaurus
extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous
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| Definition of 'plesiosaur' |
Webster Dictionary |
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1. (noun) plesiosaur
one of the Plesiosauria
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