A cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, and salamanders. They are distinguished by having an aquatic gill-breathing larval stage followed (typically) by a terrestrial lung-breathing adult stage.
The pond was teeming with amphibians, including several species of frogs and salamanders.
A vehicle that can operate both on land and in water.
The military used an amphibian to transport troops across the river.