pupillodilator

adjective
pu·​pil·​lo·​di·​la·​tor | \ ˌpyü-pə-lō-dī-ˈlāt-ər, -ˈdī-ˌ How to pronounce pupillodilator (audio) \

Medical Definition of pupillodilator

: having a dilating effect on or involving dilation of the pupil of the eye