Dictionary

amphibian

noun am·phib·i·an \-bē-ən\

: an animal (such as a frog or toad) that can live both on land and in water

: an airplane or vehicle that can be used both on land and water

Full Definition of AMPHIBIAN

1
:  an amphibious organism; especially :  any of a class (Amphibia) of cold-blooded vertebrates (as frogs, toads, or salamanders) intermediate in many characters between fishes and reptiles and having gilled aquatic larvae and air-breathing adults
2
:  an amphibious vehicle; especially :  an airplane designed to take off from and land on either land or water
amphibian adjective

Origin of AMPHIBIAN

ultimately from Greek amphibion amphibious being, from neuter of amphibios
First Known Use: 1835

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