Definition of petrochemical noun from the Oxford Advanced Learner's Dictionary

 

petrochemical

 noun
noun
BrE BrE//ˌpetrəʊˈkemɪkl//
 
; NAmE NAmE//ˌpetroʊˈkemɪkl//
 
 
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any chemical substance obtained from petroleum oil or natural gas the petrochemical industry
See the Oxford Advanced American Dictionary entry: petrochemical