The amphibians.

Of or relating to the class Amphibia. / Capable of operating on both land and water amphibious. / (obsolete) Having two natures.

An animal of the Amphibia; any four-legged vertebrate that does not have amniotic eggs, living both on land and in water.

plural of amphibian

Resembling or characteristic of an amphibian.

Archaic form of amphibian.

Amphibians collectively.