突出 tūchū HSK3 to protrude Origin Definitions Defs Strokes Stroke Words Sentences Sents 腰椎间盘突出 yāozhuījiānpántūchū slipped disk herniation of the lumbar vertebral disk; prolapsed disk腰椎间盘突出症 yāozhuījiānpántūchūzhèng herniated lumbar disk herniated lumbar disk; a condition where a disk in the lower spine bulges or ruptures, often causing back pain