regeneration
re.gen.er.a.tion \ri-.jen-*-'ra--sh*n, .re--\ n 1: an act or the process of regenerating : the state of being regenerated 2: spiritual renewal or revival 3: renewal or restoration of a body or bodily part after injury or as a nor mal process 4: utilization by special devices of heat or other products that would ordi narily be lost