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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.

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Those differences could influence the properties and luminosity of the resulting supernovae, potentially helping explain why certain Type Ia explosions are unusually bright.

From Science Daily ● Nov. 6, 2026

Type Ia supernovae are known to be “standard candles” because we know that their luminosity is the same wherever they are.

From Science Daily ● Oct. 4, 2026

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

He aptly describes the projectors’ beams of luminosity as “light sculptures.”

From Los Angeles Times ● Feb. 23, 2026

I must have felt pretty weird by that time because I could think of nothing except the luminosity of his pink suit under the moon.

From " The Great Gatsby" by F. Scott Fitzgerald

"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

The lower luminosities of red dwarf stars also means their habitable zones -- the range of orbital distances where liquid water could exist on a planet's surface -- lie closer to them.

From Science Daily ● May 23, 2024

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

Arrangement for measuring the luminosities of pigments 83 14.

From Colour Measurement and Mixture by W. de W. Abney


Vocabulary lists containing luminosity

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