Definition of photochemotherapy in English:
photochemotherapy
noun ˌfəʊtəʊkiːmə(ʊ)ˈθɛrəpiˌfəʊtəʊkɛmə(ʊ)ˈθɛrəpi
Medicine The combined use of drugs and (usually ultraviolet) light to treat a condition.
Origin
1970s; earliest use found in New England Journal of Medicine. From photo- + chemotherapy.