graf, n. a representation by means of lines, exhibiting the nature of the law according to which some phenomena vary: -graph is used as a terminal in many Greek compounds to denote an agent which writes, &c., as telegraph, seismograph, or the thing written, as in autograph, &c.âadjs. Graphâ²ic, -al, pertaining to writing, describing, or delineating: picturesquely described: vivid.âadv. Graphâ²ically. âns.
Separation of the nail from the nail bed, medically known as onycholysis, is a common condition that results in a white appearance of the affected part of the nail. Fingernail or toenail separation can have numerous causes but is typically related to trauma or a fungal infection of the nails.
It extends from the edge of the nail root, or lunula, to the hyponychium. The nail bed contains blood vessels, nerves, and melanocytes that produce melanin. As the root grows the nail, the nail streams down along the nail bed and adds material to the underside of the nail to make it thicker.