Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of liassic is as below...

Ichthyosaurus :: Ichthyosaurus (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..

Liassic :: Liassic (a.) Of the age of the Lias; pertaining to the Lias formation.

Liassic :: Liassic (n.) Same as Lias.

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