龈脓肿 Traditional form: 齦膿腫 Pinyin (reading): yínnóngzhǒng Definitions: gumboil Characters: 龈 - gums 脓 - pus 肿 - swelling; swollen; to swell Traditional characters: 齦 - gums 膿 - pus 腫 - swelling; swollen; to swell