ichthyosaurus

ichthyosaurus has 2 senses in the JumbleFix dictionary. Letters: 13.

Definitions

• n.. An extinct genus of marine reptiles; -- so named from their short, biconcave vertebrae, resembling those of fishes. Several species, varying in length from ten to thirty feet, are known from the Liassic, Oolitic, and Cretaceous formations.
• n.. ichthyosaurs of the Jurassic