disinfectant
noun [ C or U ] uk/ˌdɪs.ɪnˈfek.tənt/ us/ˌdɪs.ɪnˈfek.t̬ənt/
（尤指用于厕所、厨房表面消毒的）消毒剂，除菌剂
a substance that contains chemicals that kill bacteria and is used especially for cleaning surfaces in toilets and kitchens
Synonym: germicide