gum·boil /ˈgʌmˌbɔɪl/ 齒齦潰瘍
gum·boil /ˈgəmˌbɔɪl/ 名詞 齦膿腫
Gum·boil n. Med. A small suppurating inflamed spot on the gum. ◄ ►
gumboil n : a boil or abscess on the gums