- diapsid, diapsid reptile - reptile having a pair of openings in the skull behind each eye
--1 is a kind of reptile, reptilian
Antonyms: anapsid, anapsid reptile
--1 has particulars:tuatara, Sphenodon punctatum; saurian; archosaur, archosaurian, archosaurian reptile; crocodilian reptile, crocodilian; snake, serpent, ophidian