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photometry

[foh-tom-i-tree] /foʊˈtɒm ɪ tri/
noun
1.
the measurement of the intensity of light or of relative illuminating power.
2.
the science dealing with such measurements.
Origin
1815-1825
1815-25; < Neo-Latin photometria. See photo-, -metry
Related forms
photometric
[foh-tuh-me-trik] /ˌfoʊ təˈmɛ trɪk/ (Show IPA),
photometrical, adjective
photometrist, photometrician
[foh-tuh-me-trish-uh n] /ˌfoʊ tə mɛˈtrɪʃ ən/ (Show IPA),
noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for photo-metrical

photometry

/fəʊˈtɒmɪtrɪ/
noun
1.
the measurement of the intensity of light
2.
the branch of physics concerned with such measurements
Derived Forms
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
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photo-metrical in Science
photometry
  (fō-tŏm'ĭ-trē)   
The measurement of the intensity, brightness, or other properties of light. Also called photometrics. See also luminous intensity.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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10
10
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