Definition of amphibian
1 : an amphibious organism; especially : any of a class (Amphibia) of cold-blooded vertebrates (such as frogs, toads, or salamanders) intermediate in many characters between fishes and reptiles and having gilled aquatic larvae and air-breathing adults
2 : an amphibious vehicle; especially : an airplane designed to take off from and land on either land or water
Recent Examples of amphibian from the Web
To get there, the zoo had to make a big commitment, allocating several full-time staff to caring for the captive amphibians despite the fact that visitors weren’t as charmed by them as zebras or lions.
When an amphibian does look after its eggs or young, it’s usually the mother’s job.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'amphibian'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of amphibian
ultimately from Greek amphibion amphibious being, from neuter of amphibios
First Known Use: 1749See Words from the same year
AMPHIBIAN Defined for English Language Learners
Definition of amphibian for English Language Learners
: an animal (such as a frog or toad) that can live both on land and in water
: an airplane or vehicle that can be used both on land and water
AMPHIBIAN Defined for Kids
Definition of amphibian for Students
1 : any of a group of cold-blooded vertebrate animals (as frogs and toads) that have gills and live in water as larvae but breathe air as adults
2 : an airplane designed to take off from and land on either land or water
Seen and Heard
What made you want to look up amphibian? Please tell us where you read or heard it (including the quote, if possible).