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English definition of “petrochemical”

petrochemical

noun [C]     /ˌpet.rəʊˈkem.ɪ.kəl/ US  /-roʊ-/
any chemical substance obtained from petroleum or natural gas: the petrochemical industryPetroleum products especially when used as fuelFuelsTypes of chemicalSpecific chemicals, chemical compounds and gasesSubstances and structures in the body
(Definition of petrochemical noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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