What are the white parts of a finger nail called?
The half-moon shaped portion at the base of the nail, is called
the cuticle, the white part of the nail is the lunula
Possible correction: According to Wikipedia, The half-moon
shaped portion at the base of the nail is actually the lunula. The
cuticle is the thickened layer of skin surrounding fingernails and
toenails, more correctly called the eponychium.