Definitions

1. noun

any cold-blooded, smooth-skinned, typically semi-aquatic vertebrate that spends part of its life cycle in water and part on land, as a frog or toad

“The zoo is home to a variety of amphibians, including the colorful poison dart frog.”

2. adjective

relating to or resembling amphibians

“The amphibian stage of a frog’s life cycle is the most vulnerable to predators.”