'Gumboil' definitions:

Definition of 'gumboil'

(from WordNet)
noun
A boil or abscess on the gums

Definition of 'Gumboil'

From: GCIDE
  • Gumboil \Gum"boil\ (g[u^]m"boil), n. (Med.) A small suppurating inflamed spot on the gum. [1913 Webster]