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Diapsida

plural noun Di·ap·si·da \ dīˈapsədə \

Definition of Diapsida

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
—

diapsidan

\(ˈ)dī¦apsədᵊn\ adjective or noun

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Origin and Etymology of diapsida

New Latin, from di- + -apsida (from Greek hapsid-, hapsis arch, loop)

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