dīˈapsədə noun plural
Usage: capitalized
Etymology: New Latin, from di- + -apsida (from Greek hapsid-, hapsis arch, loop) — more at apsis
in some classifications : a subclass of reptiles having two pairs of temporal openings in the skull and including the extinct dinosaurs and pterosaurs, the crocodiles and rhynchocephalians, and usually the lizards and snakes — compare parapsida
• di·ap·si·dan (ˈ)dī|apsəd ə n adjective or noun