diapsid
English Thesaurus
1. reptile having a pair of openings in the skull behind each eye (noun.animal)
| hypernym | : | reptile, reptilian, |
| definition | : | any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms (noun.animal) |
| hyponym | : | sphenodon punctatum, tuatara, |
| definition | : | only extant member of the order Rhynchocephalia of large spiny lizard-like diapsid reptiles of coastal islands off New Zealand (noun.animal) |
| hyponym | : | saurian, |
| definition | : | any of various reptiles of the suborder Sauria which includes lizards; in former classifications included also the crocodiles and dinosaurs (noun.animal) |
| hyponym | : | ophidian, serpent, snake, |
| definition | : | limbless scaly elongate reptile; some are venomous (noun.animal) |
| antonym | : | anapsid, anapsid reptile, |
| definition | : | primitive reptile having no opening in the temporal region of the skull; all extinct except turtles (noun.animal) |
| antonym | : | anapsid, anapsid reptile, |
| definition | : | primitive reptile having no opening in the temporal region of the skull; all extinct except turtles (noun.animal) |
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