photometer

[ foh-tom-i-ter ]
See synonyms for photometer on Thesaurus.com
nounOptics.
  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.

Origin of photometer

1
From the New Latin word photometrum, dating back to 1770–80. See photo-, -meter

Words Nearby photometer

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How to use photometer in a sentence

British Dictionary definitions for photometer

photometer

/ (fəʊˈtɒmɪtə) /


noun
  1. an instrument used in photometry, usually one that compares the illumination produced by a particular light source with that produced by a standard source: See also spectrophotometer

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