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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.

The research team investigated the long-term evolution of the X-ray luminosity and rotation period of P13 from 2011 to 2024, using the archival data of XMM-Newton, Chandra, NuSTAR, and NICER.

From Science Daily • Dec. 14, 2025

“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

She found a relationship between their variation period, or pulse, and their intrinsic brightness or luminosity.

From Salon • Feb. 14, 2025

The sun disappears completely beyond the horizon, and the remaining luminosity shifts from dusk to twilight.

From "The Night Circus" by Erin Morgenstern