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noun, Electronics.
[foh-tuh-toob, -tyoob] /ˈfoʊ təˌtub, -ˌtyub/
noun, Electronics.
an with a photosensitive cathode, used like a photocell.
a type of photocell in which radiation falling on a photocathode causes electrons to flow to an anode and thus produce an electric current


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  • Photoelectrotype

    [foh-toh-i-lek-truh-tahyp] /ˌfoʊ toʊ ɪˈlɛk trəˌtaɪp/ noun 1. an made by photographic means. /ˌfəʊtəʊɪˈlɛktrəʊˌtaɪp/ noun 1. an electrotype mode using photography

  • Photoemission

    [foh-toh-i-mish-uh n] /ˌfoʊ toʊ ɪˈmɪʃ ən/ noun, Physics. 1. . /ˌfəʊtəʊɪˈmɪʃən/ noun 1. the emission of electrons due to the impact of electromagnetic radiation, esp as a result of the photoelectric effect photoemission (fō’tō-ĭ-mĭsh’ən) See photoelectric effect.

  • Photoengrave

    [foh-toh-en-greyv] /ˌfoʊ toʊ ɛnˈgreɪv/ verb (used with object), photoengraved, photoengraving. 1. to make a photoengraving of. /ˌfəʊtəʊɪnˈɡreɪv/ verb 1. (transitive) to reproduce (an illustration) by photoengraving

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