Definition of "petrochemical" in English

noun

1. (petrochemistry) Any chemical derived from petroleum.

2. (petrochemistry) Any chemical derived from any of the fossil fuels: petroleum, natural gas, or coal.

   • As the prices of petroleum, natural gas, and coal fluctuate over the years, the petrochemical industry can to some extent switch feedstocks.

adjective

1. Of or pertaining to the such compounds, or the industry that produces them.