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amphibian

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noun am·phib·i·an \-bē-ən\

Simple Definition of amphibian

  • : 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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of amphibian

  1. 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. 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


AMPHIBIAN Defined for Kids

amphibian

play
noun am·phib·i·an \am-ˈfi-bē-ən\

Definition of amphibian for Students

  1. 1 :  any of a group of cold-blooded vertebrate animals (as frogs and toads) that have gills and live in water as larvae but breathe air as adults

  2. 2 :  an airplane designed to take off from and land on either land or water





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