Found 2 items, similar to photometer.
English → English (WordNet) Definition: photometer photometer n 1: measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source 2: photographic equipment that measures the intensity of light [syn: light meter, exposure meter]
English → English (gcide) Definition: Photometer Photometer \Pho*tom"e*ter\, n. [Photo- + -meter: cf. F. photom[`e]tre.] (Physics) An instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power. [1913 Webster]