amphibian amphibian

adj

relating to or characteristic of animals of the class Amphibia  ( amphibian, amphibious )
relating to or characteristic of animals of the class Amphibia

noun

cold-blooded vertebrate typically living on land but breeding in water; aquatic larvae undergo metamorphosis into adult form  ( amphibian )
cold-blooded vertebrate typically living on land but breeding in water; aquatic larvae undergo metamorphosis into adult form

an airplane designed to take off and land on water  ( amphibian, amphibious aircraft )
an airplane designed to take off and land on water

a flat-bottomed motor vehicle that can travel on land or water  ( amphibian, amphibious vehicle )
a flat-bottomed motor vehicle that can travel on land or water