Main Entry: am·phib·i·an

Pronunciation: \-bē-ən\

Function: noun

Etymology: ultimately from Greek amphibion amphibious being, from neuter of amphibios

Date: 1835

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