photometer

Noun
  1. Measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source (synset 103933114)
    is a type of: measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
    subtypes: spectrophotometer - a photometer for comparing two light radiations wavelength by wavelength
  2. Photographic equipment that measures the intensity of light (synset 103672990)
    is a type of: photographic equipment - equipment used by a photographer
    subtypes: cytophotometer - a photometer that can be used to locate and identify chemical compounds in a cell by measuring the intensity of the light that passes through stained sections of the cytoplasm
    same as: exposure meter, light meter

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