amphibian meaning and definition

AMPHIBIAN noun

Definition of amphibian (noun)

1. a flat-bottomed motor vehicle that can travel on land or water
   • synonyms: amphibious vehicle
2. an airplane designed to take off and land on water
   • synonyms: amphibious aircraft
3. cold-blooded vertebrate typically living on land but breeding in water; aquatic larvae undergo metamorphosis into adult form

AMPHIBIAN adjective

Definition of amphibian (adjective)

1. relating to or characteristic of animals of the class Amphibia
   • synonyms: amphibious