Ple`si*o*sau"rus (?), n.; pl. Plesiosauri (#). [NL., fr. Gr near + a lizard.] Paleon.
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.
© Webster 1913.
Log in or registerto write something here or to contact authors.
Need help? firstname.lastname@example.org