[foh-toh-sel] 
| a solid-state device that converts light into electrical energy by producing a voltage, as in a photovoltaic cell, or uses light to regulate the flow of current, as in a photoconductive cell: used in automatic control systems for doors, lighting, etc. |
| pho·to·cell (fō'tō-sěl') n. A photoelectric cell. |
toʊˌsɛl