pet ‧ ro ‧ chem ‧ i ‧ cal /ˌpetrəʊˈkemɪk ə l $ -troʊ-/ BrE AmE noun [countable]
any chemical substance obtained from ↑ petroleum or natural gas:
the petrochemical industry
pet ‧ ro ‧ chem ‧ i ‧ cal /ˌpetrəʊˈkemɪk ə l $ -troʊ-/ BrE AmE noun [countable]
any chemical substance obtained from ↑ petroleum or natural gas:
the petrochemical industry
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012