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Definitions

luminosity

[loo-muh-nos-i-tee] / ˌlu məˈnɒs ɪ ti /
NOUN
radiance
Synonyms
Antonyms
STRONG


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The goal is to increase the "luminosity" -- that is, the total number of collisions produced over a given period -- by a factor of 10 compared to the LHC.

From Barron's Jun. 27, 2026

Fomalhaut lies in the southern constellation Piscis Austrinus and shines with 16 times the luminosity of our sun, making it one of the brightest stars visible from Earth.

From Science Daily Jan. 7, 2026

“I have no medium that can give me color of such wonderful luminosity as the Autochrome plate,” wrote the photographer Edward Steichen in 1908.

From The Wall Street Journal Nov. 21, 2025

These fanciful instances benefit from Mari Fukuhara’s score, a drizzle of aural luminosity.

From Los Angeles Times Nov. 7, 2025

For nearby stars, we can measure their apparent brightness and their distance, and so we can work out their luminosity.

From "A Brief History of Time: And Other Essays" by Stephen Hawking

High-sensitivity observations have discovered objects with extremely high X-ray luminosities.

From Science Daily Dec. 14, 2025

"This allows us to help explain the extreme luminosities of active galactic nuclei as well as the acceleration of particles to nearly the speed of light."

From Science Daily Oct. 8, 2025

Suvi Gezari, an astronomer at the Space Telescope Science Institute, says the observations extend the phenomenon of red novae to much lower luminosities and into the regime of planetary engulfments.

From Science Magazine May 3, 2023

The brutal fury of a system like WR 140 is undeniable, from the incredible luminosities of its stars to the cosmic tsunami of dusty winds they blast away.

From Scientific American Oct. 25, 2022

In ordinary wet or dry plate photography these effects would have been reversed, but by Dixon and Gray’s process the relative luminosities of these three colours were almost perfectly translated.

From The Evolution of Photography With a Chronological Record of Discoveries, Inventions, etc., Contributions to Photographic Literature, and Personal Reminescences Extending over Forty Years by John Werge




Vocabulary lists containing luminosity


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