AMPHIBIAN

Definition

1. adjective relating to or characteristic of animals of the class Amphibia. — synonyms: amphibious
2. noun a flat-bottomed motor vehicle that can travel on land or water. — synonyms: amphibious_vehicle
3. noun an airplane designed to take off and land on water. — synonyms: amphibious_aircraft
4. noun cold-blooded vertebrate typically living on land but breeding in water.