Parting
The line where hair is divided and combed in opposite directions, at the centre or to one side.
Also: part, centre parting, side parting
A parting, or part in American English, is the line that divides the hair so it falls to each side. A centre parting runs down the middle of the head; a side parting sits over one eye or further out; a deep side parting sweeps most of the hair to one side. The zigzag parting, the hard part shaved in with a razor, and the many neat grid partings of braids and twists are all variations. Moving a parting changes where volume falls.