What does burnsides mean?

burnsides meaning in Etymology Dictionary

model of hair on your face composed of side whiskers and a mustache (but clean-shaven chin), 1875 (single; plural form from 1878; numerous early uses come in university and institution magazines), a reference to U.S. Army Gen. Ambrose E. Burnside (1824-1881) of Civil War fame, just who wore all of them and inspired the design. Compare sideburns.