WordNet (r) 3.0 (2006):
Burnside n 1: United States general in the American Civil War who was defeated by Robert E. Lee at the Battle of Fredericksburg (1824-1881) [syn: Burnside, A. E. Burnside, Ambrose Everett Burnside] 2: facial hair that has grown down the side of a man's face in front of the ears (especially when the rest of the beard is shaved off) [syn: sideburn, burnside, mutton chop, side-whiskers]