镇痛 Traditional form: 鎮痛 Pinyin (reading): zhèntòng Definitions: to suppress pain Characters: 镇 - calm, composed; to control, to suppress 痛 - ache, pain; bitterness, sorrow; deeply, thoroughly Traditional characters: 鎮 - calm, composed; to control, to suppress 痛 - ache, pain; bitterness, sorrow; deeply, thoroughly