English noun: plesiosaurus | |||
| 1. | plesiosaurus (animal) extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous | ||
| Synonyms | plesiosaur | ||
| Broader (hypernym) | archosaur, archosaurian, archosaurian reptile | ||
| Member meronym | genus Plesiosaurus | ||