nonpetrochemical
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petrochemical — /pe troh kem i keuhl/, n. 1. a chemical substance obtained from petroleum or natural gas, as gasoline, kerosene, or petrolatum. adj. 2. of or pertaining to petrochemistry or a petrochemical. [1910 15; PETRO 2 + CHEMICAL] * * * Strictly, any of a… … Universalium
