Medical Dictionary


noun lu·nu·la \ˈlü-nyə-lə\
plural lu·nu·lae \-(ˌ)lē also -ˌlī\

Medical Definition of LUNULA

:  a crescent-shaped body part: as a :  the whitish mark at the base of a fingernail—called also half-moon b :  the crescentic unattached border of a semilunar valve


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