Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun diapsida

1 sense of diapsida

Sense 1
Diapsida, subclass Diapsida -- (used in former classifications to include all living reptiles except turtles; superseded by the two subclasses Lepidosauria and Archosauria)
       => reptile, reptilian -- (any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms)