amphibia
English Thesaurus
1. the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians (noun.animal)
hypernym | : | class, |
definition | : | (biology) a taxonomic group containing one or more orders (noun.group) |
member holonym | : | amphibian, |
definition | : | cold-blooded vertebrate typically living on land but breeding in water; aquatic larvae undergo metamorphosis into adult form (noun.animal) |
member holonym | : | genus hynerpeton, hynerpeton, |
definition | : | earliest fossil amphibian ever found; of the Devonian; found in Pennsylvania (noun.animal) |
member holonym | : | genus ichthyostega, |
definition | : | second earliest fossil amphibian ever found; of the Devonian; found in Greenland (noun.animal) |
member holonym | : | order stegocephalia, stegocephalia, |
definition | : | in former classifications a division of class Amphibia comprising all pre-Jurassic and some later extinct large salamandriform amphibia (noun.animal) |
derivation | : | amphibian, amphibious, |
definition | : | relating to or characteristic of animals of the class Amphibia (adj.pert) |
derivation | : | amphibian, amphibious, |
definition | : | relating to or characteristic of animals of the class Amphibia (adj.pert) |
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