PHOTOSENSITIZE is validvalid

to sensitize to light [v PHOTOSENSITIZED, PHOTOSENSITIZES] : PHOTOSENSITIZER [n]

190,679 of 196,601 in NWL2023·also valid in CSW24

to make photosensitive by chemical or other means, also PHOTOSENSITISE [v PHOTOSENSITIZED, PHOTOSENSITIZES]