plesiosaur
NounSynonyms:
plesiosaurus
WordNet 3.0
Noun (1)
- extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and CretaceousSynonyms: plesiosaurus
Webster's Dictionary (GCIDE)
Plesiosaur \Ple"si*o*saur\, n. (Paleon.) One of the Plesiosauria. [1913 Webster]