Definitions by masterman9000
lunula
The lunula is a semilunar (half-moon) white region at the base of the nail plate, and is generally found in the thumbnail of most people and in a varying degrees in other fingers.Air mixed in with keratin and cells rich in nuclei gives the lunula it's whitish color.
His lunula is missing.
lunula by masterman9000 April 7, 2010