Plesiosaur

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Plesiosaur \Ple"si*o*saur\, n. (Paleon.)
     One of the Plesiosauria.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:



  plesiosaur
       n : extinct marine reptile with a small head on a long neck a
           short tail and four paddle-shaped limbs; of the Jurassic
           and Cretaceous [syn: {plesiosaurus}]