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 ichthyosaur is as below...

Ichthyosaur :: Ichthyosaur (n.) One of the Ichthyosaura.

Enaliosauria :: Enaliosauria (n. pl.) An extinct group of marine reptiles, embracing both the Ichthyosauria and the Plesiosauria, now regarded as distinct orders..

Ichthyosaurian :: Ichthyosaurian (a.) Of or pertaining to the Ichthyosauria.

Ichthyosauri :: Ichthyosauri (pl. ) of Ichthyosauru.

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..

Ichthyosauria :: Ichthyosauria (n. pl.) An extinct order of marine reptiles, including Ichthyosaurus and allied forms; -- called also Ichthyopterygia. They have not been found later than the Cretaceous period..

Ichthyosaurian :: Ichthyosaurian (n.) One of the Ichthyosauria.

Ichthyopterygia :: Ichthyopterygia (n. pl.) See Ichthyosauria.

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