| NOUN | artifact | photocathode | a cathode that emits electrons when illuminated |
|---|
| Meaning | A cathode that emits electrons when illuminated. | |
|---|---|---|
| Part of | photoelectric cell, photoconductive cell, photocell, electric eye, magic eye | A transducer used to detect and measure light and other radiations |
| Broader | cathode | A negatively charged electrode that is the source of electrons entering an electrical device |
| Spanish | fotocátodo | |
| Catalan | fotocàtode | |
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