English

relapse noun definition in Being ill topic from the Oxford Advanced Learner's Dictionary

relapse

 noun: Being ill topic
BrE /rɪˈlæps/ ; NAmE /rɪˈlæps/ ; BrE /ˈriːlæps/ ; NAmE /ˈriːlæps/ [countable, uncountable] the fact of becoming ill/sick again after making an improvement to have/suffer a relapse a risk of relapse