Medical Dictionary
lunula
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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