Sideburn
The strip of hair in front of each ear, where the hair of the head meets the face.
Also: sideburns
The sideburn is the strip of hair that runs down in front of each ear. In a haircut it is the line where the head hair stops and, on some people, where the beard begins. Barbers cut it to a set length, often level with the middle or bottom of the ear, and fade it into the skin or the beard. The name comes from Ambrose Burnside, an American general of the 1860s known for his side whiskers.