Definition of gumboil noun from the Oxford Advanced Learner's Dictionary

 

gumboil

 noun
noun
BrE BrE//ˈɡʌmbɔɪl//
 
; NAmE NAmE//ˈɡʌmbɔɪl//
 
 
jump to other results
a small swelling on the gum in a person’s mouth, over an infected area on the root of a tooth