口腔炎 Traditional form: 口腔炎 Pinyin (reading): kǒuqiāngyán Definitions: stomatitis ulceration of oral cavity inflammation of the mucous lining of the mouth Characters: 口 - mouth; entrance, gate, opening 腔 - chest cavity; a hollow in the body 炎 - flame, blaze; hot Traditional characters: 口 - mouth; entrance, gate, opening 腔 - chest cavity; a hollow in the body 炎 - flame, blaze; hot