decommission
verb [ T ]
uk/ˌdiːkəˈmɪʃən/ usto officially take a factory or other industrial building out of use and make the area safe:
The company's closure was announced in 2010, but 55 people still work there decommissioning the plant.
decommission
noun [ S or U ]
uk/ˌdiːkəˈmɪʃən/ us(also decommissioning)the act of officially taking a factory or other industrial building out of use:
The decommission of a nuclear reactor can only take place after the appropriate licence has been granted.
The decommissioning of North Sea oil fields will present a £10bn opportunity up to 2030, according to a new study.