Onychoschizia is a splitting of the distal nail plate into layers at the free edge, a very common problem among women and represents a dyshesion of the layers of keratin, possible as a result of dehydration.{rp|786} ...
Splitting of the nails in layers. ... Origin: onycho-+ G. Schizo, to divide, + -ia, condition ... (05 Mar 2000) ... 
(on″ĭ-ko-skiz´e-ә) splitting or lamination of the nail plate, usually in the horizontal plane at the free edge.
Type: Term Pronunciation: on′i-kō-skiz′ē-ă Definitions: 1. Splitting of the nails in layers.