English definition of “relapse”
/rɪˈlæps/, /ˈriːlæps/ noun [C, U]
ILL › when someone becomes ill again after a period of feeling better: I had a relapse last year and was off work for a month.
WORSE › when something or someone gets worse again after being better: The company's share prices have suffered a relapse this week. relapse
/rɪˈlæps/ verb [I]