Found 2 items, similar to plesiosaur.
English → English (WordNet) Definition: plesiosaur 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]
English → English (gcide) Definition: Plesiosaur Plesiosaur \Ple"si*o*saur\, n. (Paleon.) One of the Plesiosauria. [1913 Webster]