1. (

• amphibian ,
• amphibious_vehicle

) a flat-bottomed motor vehicle that can travel on land or water ;

2. (

• amphibian ,
• amphibious_aircraft

) an airplane designed to take off and land on water ;

3. (

• amphibian

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

1. (

• amphibious ,
• amphibian

) relating to or characteristic of animals of the class Amphibia ;