oesophagitis
noun [ U ] medical UK specialized (US esophagitis) uk/ɪˌsɒf.əˈdʒaɪ.tɪs/ us/ɪˌsɑːf.əˈdʒaɪ.t̬əs/
食道炎
inflammation of the oesophagus (= the tube that takes food from the mouth to the stomach)
Pain on swallowing may be due to severe oesophagitis. 吞咽时疼痛可能是严重的食道炎造成的。