From Longman Dictionary of Contemporary Englishpetrochemicalpet‧ro‧chem‧i‧cal /ˌpetrəʊˈkemɪkəl $ -troʊ-/ noun [countable] HCTPany chemical substance obtained from petroleum or natural gas the petrochemical industry
Examples from the Corpus
petrochemical• The future expansion of very large, mature businesses such as petrochemicals is unlikely to be spectacular.• For example, the industrial giants who dominate the chemical industry have large capital investments in petrochemicals.• In petrochemicals and oil, in particular, the tendency is still to be unnecessarily protective.• These things are pretty big and it's a shame to waste such a large resource of petrochemicals.• The air chokes with the stench of petrochemicals.• The modern kitchen and its accessories, from aluminum to petrochemicals, had to be created.• When petrochemicals are privatized, we are going to lose sovereignty.• The tie-up with petrochemicals is logical. 