disability, disablement, handicap, impairment - the condition of being unable to perform as a consequence of physical or mental unfitness; "reading disability"; "hearing impairment"

surgical operation, surgical procedure, surgical process, surgery, operation - a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body; "they will schedule the operation as soon as an operating room is available"; "he died while undergoing surgery"