photometry

American  

[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.

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photometry British  

/ ˌfəʊtəˈmɛtrɪk, fəʊˈtɒmɪtrɪ /

noun

1. the measurement of the intensity of light

2. the branch of physics concerned with such measurements

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photometry Scientific  

/ fō-tŏm′ĭ-trē /

1. The measurement of the intensity, brightness, or other properties of light.

2. Also called photometrics

3. See also luminous intensity

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Other Word Forms

• photometric adjective
• photometrical adjective
• photometrically adverb
• photometrician noun
• photometrist noun

Etymology

Origin of photometry

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

Example Sentences

The new study pioneers a new approach to use photometry -- with an unprecedented four filters -- to find the supernovae, classify them and measure their light curves.

From Science Daily • Jan. 8, 2024

Rather than let her continue with the spectra, he instead directed her to the field of standard photometry.

From Scientific American • Jun. 22, 2023

Curious what the rodents’ brain activity might reveal, Hu and her colleagues turned to a technique called fiber photometry, a kind of brain-imaging and mind-control technique all in one.

From Science Magazine • Jan. 27, 2023

One of the most tried-and-true methods of exoplanet hunting is called transit photometry, which is basically pointing a telescope at a star and measuring the light when a planet swings past.

From Salon • Sep. 13, 2022

He found the light of the sun to be 300 times more intense than that of the moon, and thus made some of the earliest measurements in photometry.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" by Various