ichthyosaurus

• POS: Noun
• HYPHEN: ich=thy=o=saur=us

CIDE DICTIONARY

ichthyosaurus, n. [NL., fr. Gr. 'ichqy`s, -y`os, a fish + say^ros a lizard.].

 An extinct genus of marine reptiles; -- so named from their short, biconcave vertebræ, resembling those of fishes. Several species, varying in length from ten to thirty feet, are known from the Liassic, Oölitic, and Cretaceous formations.  [1913 Webster]

OXFORD DICTIONARY

ichthyosaurus, n. (also ichthyosaur) any extinct marine reptile of the order Ichthyosauria, with long head, tapering body, four flippers, and usu. a large tail.

Etymology

ICHTHYO- + Gk sauros lizard