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Definition of deteriorate verb from the Oxford Advanced American Dictionary

 

deteriorate

 verb
verb
NAmE//dɪˈtɪriəˌreɪt//
 
[intransitive]Verb Forms present simple I / you / we / they deteriorate
 
he / she / it deteriorates
 
past simple deteriorated
 
-ing form deteriorating
 
 
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to become worse Her health deteriorated rapidly, and she died shortly afterward. deteriorating weather conditions deteriorate into something The discussion quickly deteriorated into an angry argument.
deterioration
 
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NAmE//dɪˌtɪriəˈreɪʃn//
 
noun [uncountable, countable] a serious deterioration in relations between the two countriesSee deteriorate in the Oxford Advanced Learner's Dictionary
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