photometry

[ foh-tom-i-tree ]

/ foʊˈtɒm ɪ tri /

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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. 2023

How to use photometry in a sentence

The results will be published in the form of a catalogue resembling the Photometric Catalogue given in volume xiv.
Scientific American Supplement, No. 601, July 9, 1887|Various
Frank Bailey has furnished particulars of photometric tests which he has made on new and old street lamps in the city of London.
Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 6|Various
Photometric catalogues, accordingly, form an indispensable part of stellar statistics; and Photometric catalogues.
Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7|Various
For some years past star-magnitudes have been determined very accurately by means of careful photometric comparisons.
Man's Place in the Universe|Alfred R. Wallace

Its use for photometric purposes and in current regulators will be mentioned further on.
Scientific American Supplement, No. 492, June 6, 1885|Various

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-tŏm′ĭ-trē ]

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