Electronics. a photocell whose resistance varies according to the intensity of light falling on it.
[foh-toh-kon-duhk-tiv-i-tee] /ˌfoʊ toʊˌkɒn dʌkˈtɪv ɪ ti/ noun, Physics. 1. the increase in the electrical of a substance, often nonmetallic, caused by the absorption of electromagnetic radiation. /ˌfəʊtəʊˌkɒndʌkˈtɪvɪtɪ/ noun 1. the change in the electrical conductivity of certain substances, such as selenium, as a result of the absorption of electromagnetic radiation
[foh-tuh-kop-ee-er] /ˈfoʊ təˌkɒp i ər/ noun 1. any electrically operated machine using a photographic method, as the electrostatic process, for making instant copies of written, drawn, or printed material. /ˈfəʊtəʊˌkɒpɪə/ noun 1. an instrument using light-sensitive photographic materials to reproduce written, printed, or graphic work n. 1934, agent noun from photocopy (v.).
[foh-tuh-kop-ee] /ˈfoʊ təˌkɒp i/ noun, plural photocopies. 1. a photographic reproduction of a document, print, or the like. verb (used with object), photocopied, photocopying. 2. to reproduce (a document, print, or the like) photographically. /ˈfəʊtəʊˌkɒpɪ/ noun (pl) -copies 1. a photographic reproduction of written, printed, or graphic work See also microcopy verb -copies, -copying, -copied […]
[foh-toh-kur-uh nt, -kuhr-] /ˈfoʊ toʊˌkɜr ənt, -ˌkʌr-/ noun, Physics. 1. an produced by a photoelectric effect. /ˈfəʊtəʊˌkʌrənt/ noun 1. an electric current produced by electromagnetic radiation in the photoelectric effect, photovoltaic effect, or photoconductivity