Word Study
plesiosaurus
WORDNET DICTIONARY
Noun plesiosaurus has 1 sense
- plesiosaurus(n = noun.animal) plesiosaur - extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous; Array is a kind of archosaur, archosaurian, archosaurian reptile
is a member of genus plesiosaurus
CIDE DICTIONARY
plesiosaurus, n. [NL., fr. Gr near + a lizard.].
A genus of large extinct marine reptiles, having a very long neck, a small head, and paddles for swimming. It lived in the Mesozoic age. [1913 Webster]
OXFORD DICTIONARY
plesiosaurus, n. (also plesiosaur) any of a group of extinct marine reptiles with a broad flat body, short tail, long flexible neck, and large paddle-like limbs.
Etymology
mod.L f. Gk plesios near + sauros lizard
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