petrochemie

the first syllable of petroleum (“Latin”) +‎ chemie 'chemistry' (via Latin chimia ultimately from Ancient Greek)

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petrochemie f (plural petrochemies, diminutive petrochemietje n)

1. petrochemistry, the branch of chemistry working mainly with components of fossile oil
2. (absolute use, with the definite article: de petrochemie) The corresponding, petrochemical branch of industry

• petrochemisch