SG Heritage Dictionary

Reptilia [Noun plural] Webster's Dictionary 1913

A class of air-breathing oviparous vertebrates, usually covered with scales or bony plates. The heart generally has two auricles and one ventricle. The development of the young is the same as that of birds.

Reptilian [Adjective] Webster's Dictionary 1913

Belonging to the reptiles.

Reptilian [Noun] Webster's Dictionary 1913

One of the Reptilia; a reptile.