photosensitise
/ˌfoʊtoʊˈsɛnsɪtaɪz/
verb
- To make a substance or material sensitive to light, especially for use in photography or medical treatment.
- The lab technician learned how to photosensitise the paper for the experiment.
- The chemist used a special dye to photosensitise the film.
- Doctors photosensitise certain drugs so they activate only when exposed to light.