plural noun
An·​ap·​si·​da | \ -sədə \

Definition of Anapsida

: a subclass of Reptilia comprising primitive forms in which the skull lacks temporal openings and including chiefly Permian forms with the turtles as its only present representatives

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First Known Use of Anapsida

1917, in the meaning defined above

History and Etymology for Anapsida

New Latin, from an- + -apsida (from Greek apsid-, apsis loop, arch)

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The first known use of Anapsida was in 1917

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Cite this Entry

“Anapsida.” Dictionary, Merriam-Webster, Accessed 16 Apr. 2021.

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