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 pterygia is as below...

Polypteroidei :: Polypteroidei (n. pl.) A suborder of existing ganoid fishes having numerous fins along the back. The bichir, or Polypterus, is the type. See Illust. under Crossopterygian..

Dipterygian :: Dipterygian (a.) Having two dorsal fins; -- said of certain fishes.

Acanthopterygian :: Acanthopterygian (a.) Belonging to the order of fishes having spinose fins, as the perch..

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

Chondropterygian :: Chondropterygian (a.) Having a cartilaginous skeleton.

Chondropterygian :: Chondropterygian (n.) One of the Chondropterygii.

Malacopterygian :: Malacopterygian (n.) One of the Malacopterygii.

Crossopterygian :: Crossopterygian (n.) One of the Crossopterygii.

Sauropterygia :: Sauropterygia (n. pl.) Same as Plesiosauria.

Pterygia :: Pterygia (pl. ) of Pterygiu.

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..

Cheiropterygia :: Cheiropterygia (pl. ) of Cheiropterygiu.

Crossopterygian :: Crossopterygian (a.) Of or pertaining to the Crossopterygii.

Propterygia :: Propterygia (pl. ) of Propterygiu.

Plesiosauria :: Plesiosauria (n. pl.) An extinct order of Mesozoic marine reptiles including the genera Plesiosaurus, and allied forms; -- called also Sauropterygia..

Acanthopterygian :: Acanthopterygian (n.) A spiny-finned fish.

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