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English definition of “deterioration”

deterioration

noun [C or U]
 
 
/dɪˌtɪəriəˈreɪʃən/
the process or fact of becoming worse: We cannot allow continued deterioration of our production standards. A deterioration in retail sales in the second quarter has resulted in a poor forecast.
(Definition of deterioration from the Cambridge Business English Dictionary © Cambridge University Press)
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