| photometer |
measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source light meter: photographic equipment that measures the intensity of light
출처: wordnet.princeton.edu/perl/webwn
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| photometry |
measurement of the properties of light (especially luminous intensity)
출처: wordnet.princeton.edu/perl/webwn
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| photomicrograph |
a photograph taken with the help of a microscope
출처: wordnet.princeton.edu/perl/webwn
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| photon |
a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle
출처: wordnet.princeton.edu/perl/webwn
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| photochemical reaction |
a chemical reaction produced by the action of light
출처: wordnet.princeton.edu/perl/webwn
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