An animal of a class that includes frogs, toads, newts, and salamanders. They have smooth moist skin and typically breed in water, but live on land as adults.
Early 18th century: from latin amphibium "double-lived creature" + -an.
- The amphibian exhibit at the zoo featured various species of frogs.
- The newts in the pond were a type of amphibian.
- The biology class studied the metamorphosis of amphibians.
- Amphibians are an important indicator species for the health of an ecosystem.
- The amphibian was able to survive on both land and in water.