Parapsida

plural noun

Pa·​rap·​si·​da

pəˈrapsədə

in some classifications

: a subclass of reptiles in which the skull has two dorsal temporal openings adjoining the parietals and which includes the ichthyosaurs and related extinct forms and sometimes the lizards and snakes compare diapsida

Word History

Etymology

New Latin, from para- entry 1 + -apsida (from Greek hapsid-, hapsis arch, loop)

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