amphibian
amphibian Lexical Profile
amphibian Game Scores & Validity
• noun
A cold-blooded vertebrate animal of a class that comprises frogs, toads, newts, and salamanders, distinguished by having an aquatic gill-breathing larval stage followed typically by a terrestrial lung-breathing adult stage.
"During the biology field trip, students observed a salamander and discussed how a porous skin is vital to an amphibian."
An airplane, tank, or other vehicle designed specifically to operate on both land and water.
"The troops boarded the heavily armored amphibian, driving directly off the transport ship and onto the shoreline."
• adjective
Relating to or characteristic of animals that live both in water and on land.
"The conservation project focuses heavily on protecting the vulnerable amphibian populations in the wetlands."
Designed to operate seamlessly on both land and water.
"The rescue team relied on an amphibian craft to reach the flooded village safely."
Word Nuance & Usage
While often colloquially grouped with reptiles, amphibians are scientifically distinguished by their lack of scales, porous skin, and a metamorphic life cycle that usually transitions from water to land.
• Rhymes for amphibian
• Nearby Words
Word Origin & Etymology
Derived from the Greek word 'amphibios', meaning 'living a double life', combining 'amphi-' (both) and 'bios' (life). It entered English in the mid-17th century via modern Latin.
Usage Trend
Historical frequency of usage in published text.