amphibian
CLASS OF TETRAPODS, WHOSE LIVING FORMS INCLUDE FROGS, TOADS, SALAMANDERS, NEWTS AND CAECILIANS
Amphibians; Amphibia; Amphibian (zoology); Amphibian venoms; Amphibian proteins; Amphibian venom; Amphibious creatures; Amphibean; Amphibian anatomy; Origin of amphibians; Amphibios; Evolution of amphibians; Skeletal systems of amphibians; Life cycle of amphibians; Excretory system of amphibians; Evolutionary history of amphibians; Reproductive biology of amphibians; Respiratory systems of amphibians; Circulatory systems of amphibians; Amphibian conservation; Digestive systems of amphibians; Reproductive systems of amphibians; Phallodeum; Amphibia (class)
[am'f?b??n]
¦ noun Zoology a cold-blooded vertebrate animal of a class (Amphibia) that comprises the frogs, toads, newts, salamanders, and caecilians, distinguished by an aquatic gill-breathing larval stage followed by a terrestrial lung-breathing adult stage.
Origin
C17 (in the sense 'of dual or doubtful nature'): from mod. L. amphibium 'an amphibian', from Gk amphibion (noun use of amphibios 'living both in water and on land', from amphi 'both' + bios 'life').