What is "crepe suzette"

Crepe Suzette \Cr[^e]pe` Su*zette"\ (kr?p` s?*z[e^]t"), pl. Crepes Suzette \Cr[^e]pes` Su*zette"\ or Crepe Suzettes \Cr[^e]pe` Su*zettes"\ [F.] n. A rolled or folded crepe[3], heated in an orange-flavored liqueur (or in a hot orange-butter sauce and moistened with a liqueur) and set on fire when served.

n. crepes flamed in a sweet orange-and-lemon flavored liqueur sauce