1. （军事行动）两栖作战的
In an amphibious military operation, army and navy forces attack a place from the sea.

2. （车辆)水陆两用的
An amphibious vehicle is able to move on both land and water.

3. （动物）水陆两栖的
Amphibious animals are animals such as frogs and toads that can live both on land and in water.

1. operating or living on land and in water

e.g. amphibious vehicles
amphibious operations
amphibious troops
frogs are amphibious animals

2. relating to or characteristic of animals of the class Amphibia

Synonym: amphibian