PHOTORECEPTOR By N., Sam M.S. - 12 noun. a visual receptor, particularly a retinal cone or rod. PHOTORECEPTOR: "Without photoreceptors, you would not be able to see." Related Psychology Terms VISIBILITY CURVE PHOTOPIGMENT Counselor's Role in Emergency Teams COLOR SOLID PIGMENT EPITHELIUM OPSIN ROD-AND-FRAME TEST (RFT) SCOTOPIC VISION LYSERGIC ACID (LSD) SCOTOPSIN Cite this page: N., Sam M.S., "PHOTORECEPTOR," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/photoreceptor/ (accessed February 2, 2023).