sideburns -
Facial hair reaching from the top of the head down the side of the face to the side of the chin.
Wikipedia
Sideburns or sideboards are patches of facial hair grown on the sides of the face, extending from the hairline to below the ears and worn with an unbearded chin. The term "sideburns" is a 19th century corruption of the original burnsides, named after American Civil War general Ambrose Burnside, a man known for his unusual facial hairstyle that connected thick sideburns by way of a moustache but left the chin clean-shaven.
