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a passion or desire for light; an organism’s growth toward light
Word Origin

photo- ‘light’


Read Also:

  • Photomap

    [foh-tuh-map] /ˈfoʊ təˌmæp/ noun 1. a mosaic of aerial photographs marked as a , with grid lines, place-names, etc. verb (used with object), photomapped, photomapping. 2. to by means of aerial photography. /ˈfəʊtəʊˌmæp/ noun 1. a map constructed by adding grid lines, place names, etc, to one or more aerial photographs verb -maps, -mapping, -mapped […]

  • Photomechanical

    [foh-toh-muh-kan-i-kuh l] /ˌfoʊ toʊ məˈkæn ɪ kəl/ adjective 1. noting or pertaining to any of various processes for printing from plates or surfaces prepared by the aid of photography. /ˌfəʊtəʊmɪˈkænɪkəl/ adjective 1. of or relating to any of various methods by which printing plates are made using photography noun 2. a final paste-up of artwork […]

  • Photomechanical transfer

    noun 1. a method of producing photographic prints or offset printing plates from paper negatives by a chemical transfer process rather than by exposure to light

  • Photometer

    [foh-tom-i-ter] /foʊˈtɒm ɪ tər/ noun, Optics. 1. an instrument that measures luminous intensity or brightness, luminous flux, light distribution, color, etc., usually by comparing the light emitted by two sources, one source having certain specified standard characteristics. /fəʊˈtɒmɪtə/ noun 1. an instrument used in photometry, usually one that compares the illumination produced by a particular […]

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