No, It is the Matrix.
Lunula.
The most active growing portion of the nail is the Lunula. The Lunula is the white lower part of your nail closest to your skin.
this is known as the Lunola
It's not. Where your lunula is, the nail matrix is thicker. This means that you cannot see the blood as well, causing that part of your nail to look pale. That's it.
The middle part of the nail is called the nail plate or nail body. It is the hard, flat portion of the nail that extends from the base to the free edge.
Below your nail there is a nail matrix. Below the nail matrix there are blood vessels. Where your lunula is, the nail matrix is thicker. This means that you cannot see the blood as well, causing that part of your nail to look pale. The Lunula is often referred to as "moons". The lunula is in fact the front end of the matrix. The whitish half moons are keratin cells that have not yet been completely flattened and still have some of their content. Not everyone has visible lunula's The lunula is normally more prominent on the thumbs. The shape of the lunula determines the shape of the free edge/distal edge.
The lunula, or lunulae (pl.) (little moon in Latin), is the crescent-shaped whitish area of the bed of a fingernail or toenail. The lunula is the visible part of the root of the nail.
finger nail
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.
Nails grow by mitosis of cells in the stratum germinativum beneath the lunula (it looks like part of the noon) on the nail bed; average growth is about 0.5 mm per week, or slightly over 1 inch per year.
Lunula
The nail bed is part of the nail matrix called the sterile matrix. It extends from the edge of the germinal matrix, or lunula, to the hyponychium. The nail bed contains the blood vessels, nerves, and melanocytes, or melanin-producing cells. As the nail is produced by the root, it streams down along the nail bed, which adds material to the undersurface of the nail making it thicker. It is important for normal nail growth that the nail bed be smooth. If it is not, the nail may split or develop grooves that can be cosmetically unappealing.