photometry

[ foh-tom-i-tree ]

noun
  1. the measurement of the intensity of light or of relative illuminating power.

  2. the science dealing with such measurements.

Origin of photometry

1
From the New Latin word photometria, dating back to 1815–25. See photo-, -metry

Other words from photometry

  • pho·to·met·ric [foh-tuh-me-trik], /ˌfoʊ təˈmɛ trɪk/, pho·to·met·ri·cal, adjective
  • pho·tom·e·trist, pho·to·me·tri·cian [foh-tuh-me-trish-uhn], /ˌfoʊ tə mɛˈtrɪʃ ən/, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

British Dictionary definitions for photometry

photometry

/ (fəʊˈtɒmɪtrɪ) /


noun
  1. the measurement of the intensity of light

  2. the branch of physics concerned with such measurements

Derived forms of photometry

  • photometric (ˌfəʊtəˈmɛtrɪk), adjective
  • photometrically, adverb
  • photometrist, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for photometry

photometry

[ fō-tŏmĭ-trē ]


  1. The measurement of the intensity, brightness, or other properties of light. Also called photometrics See also luminous intensity.

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