Medical Dictionary

plica semilunaris

noun plica semi·lu·na·ris \-ˌsem-i-ˌlü-ˈnar-əs\
plural plicae semi·lu·na·res \-(ˌ)ēz\

Medical Definition of PLICA SEMILUNARIS

:  the vertical fold of conjunctiva that occupies the canthus of the eye nearer the nose and is homologous to the nictitating membrane of lower animals

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