photometry

[ foh-tom-i-tree ]
/ foʊˈtɒm ɪ tri /

noun

the measurement of the intensity of light or of relative illuminating power.
the science dealing with such measurements.

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Origin of photometry

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, adjectivepho·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. 2021

Example sentences from the Web for photometry

British Dictionary definitions for photometry

photometry
/ (fəʊˈtɒmɪtrɪ) /

noun

the measurement of the intensity of light
the branch of physics concerned with such measurements

Derived forms of photometry

photometric (ˌfəʊtəˈmɛtrɪk), adjectivephotometrically, adverbphotometrist, 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 ]

The measurement of the intensity, brightness, or other properties of light. Also called photometrics See also luminous intensity.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.