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Medical Dictionary

Amphibia

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noun plural Am·phib·ia \am-ˈfib-ē-ə\

Medical Definition of Amphibia

  1. 1:  a class of subphylum Vertebrata comprising forms (as the frogs, toads, newts, and salamanders) that are intermediate in many respects between fishes and reptiles, are cold-blooded with nucleated red blood cells and a 3-chambered heart, and that have gilled aquatic larvae and air-breathing adults

  2. 2:  the members of the class Amphibia

amphibian \-ē-ən\play noun or adjective



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