Plē'si-o-sa̤u'rus1, n.
n. [Gr. πλησιός, near, and σαῦρος, lizard, Fr. plésiosaure.] (Paleon.) A genus of large extinct marine reptiles, having the neck very long, and the body and tail short.
2 entries under this word
Plesiosaurus
Plī'o-sau'rus2, n.
n. [Gr. πλείων, greater, and σαῦρος, lizard.] (Palæon.) A swimming saurian allied to the plesiosaurus, whose fossil remains are found in the oolite. R. Owen.