noun
petrochemistry; petrochemical industry
Abbreviation of 石油化学 or 石油化学工業. Used in technical and industrial contexts.
油化製品の需要が高まっている。
Demand for petrochemical products is increasing.
彼は油化の分野で長年研究を続けている。
He has been conducting research in the field of petrochemistry for many years.
Abbreviation of 石油化学 (petrochemistry) or 石油化学工業 (petrochemical industry), formed by taking the second character 油 (oil) and the last character 化 (chemistry/change).