Source : Webster's Revised Unabridged Dictionary (1913)

Exulceration \Ex*ul`cer*a"tion\, n. [L. exulceratio: cf. F.
   exulc['e]ration.] [Obs. or R.]
   1. Ulceration. --Quincy.

   2. A fretting; a festering; soreness. --Hooker.