dinosaur definition, dinosaur meaning | English dictionary

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dinosaur

  

      n  
1    any extinct terrestrial reptile of the orders Saurischia and Ornithischia, many of which were of gigantic size and abundant in the Mesozoic era  
   See also       saurischian       ornithischian  
  
Compare  
    pterosaur       plesiosaur  
2    a person or thing that is considered to be out of date  
     (C19: from New Latin dinosaurus, from Greek deinos fearful + sauros lizard)  
  dinosaurian      adj  
English Collins Dictionary - English Definition & Thesaurus  
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dinosaur

  

English Collins Dictionary - English synonyms & Thesaurus  

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