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-uh n] /ˌfoʊ tə mɛˈtrɪʃ ən/, noun

Words nearby photometry

photomap, photomechanical, photomechanical transfer, photometer, photometric brightness, photometry, photomicrograph, photomicroscope, photomontage, photomorphogenesis, photomosaic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for photometry

An important matter in connexion with glow lamps is their photometry.
Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 6|Various
Celestial photography, photometry and spectroscopy sum up its fields of activity.
The Popular Science Monthly, July, 1900|Various
Then came astrophysics, including photography, spectroscopy and photometry.
The Future of Astronomy|Edward C. Pickering
This arrangement leaves untouched the old difficulty in photometry, that arising from the different colors of different lights.
Scientific American Supplement, No. 492, June 6, 1885|Various

Considerations drawn from photometry were also lost sight of, because that art was still undeveloped.
The Popular Science Monthly, October, 1900|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.