Anapsida

plural noun An·ap·si·da \-sədə\

Definition of Anapsida

  1. :  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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Origin and Etymology of anapsida

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


First Known Use: 1917


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