reptilia
English Thesaurus
1. class of cold-blooded air-breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates; once the dominant land animals (noun.animal)
| hypernym | : | class, |
| definition | : | (biology) a taxonomic group containing one or more orders (noun.group) |
| member holonym | : | reptile, reptilian, |
| definition | : | any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms (noun.animal) |
| member holonym | : | anapsida, subclass anapsida, |
| definition | : | oldest known reptiles; turtles and extinct Permian forms (noun.animal) |
| member holonym | : | archosauria, subclass archosauria, |
| definition | : | a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts (noun.animal) |
| member holonym | : | subclass synapsida, synapsida, |
| definition | : | extinct reptiles of the Permian to Jurassic considered ancestral to mammals (noun.animal) |
| derivation | : | reptilian, |
| definition | : | of or relating to the class Reptilia (adj.pert) |
| derivation | : | reptilian, |
| definition | : | of or relating to the class Reptilia (adj.pert) |
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