anapsid
English Thesaurus
1. primitive reptile having no opening in the temporal region of the skull; all extinct except turtles (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) |
| member meronym | : | anapsida, subclass anapsida, |
| definition | : | oldest known reptiles; turtles and extinct Permian forms (noun.animal) |
| antonym | : | diapsid, diapsid reptile, |
| definition | : | reptile having a pair of openings in the skull behind each eye (noun.animal) |
| antonym | : | diapsid, diapsid reptile, |
| definition | : | reptile having a pair of openings in the skull behind each eye (noun.animal) |
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