distribution photometer

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• photometer — /foh tom i teuhr/, n. Optics. 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… …   Universalium

• photometer — pho•tom•e•ter [[t]foʊˈtɒm ɪ tər[/t]] n. opt an instrument that measures luminous intensity or brightness, luminous flux, light distribution, color, etc., usu. by comparing the light emitted by two sources, one source having certain specified… …   From formal English to slang

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