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: the attribute of light-source colors by which emitted light is ordered continuously from light to dark in correlation with its intensity compare hue sense 2c, lightness entry 1 sense 2a, saturation sense 4
Examples of brightness in a Sentence
the brightness of the sunshine made me squint after an afternoon spent in a darkened movie theater
Recent Examples on the Web
The issue is that applying a privacy display to foldable panels means overcoming reduced resolution, lower brightness and higher power consumption whenever Privacy Mode is switched on.
—
Janhoi McGregor,
Forbes.com,
2 July 2026
Wash Whites Together To maintain the brightness of your whites, just washing them alone can make a major difference.
—
Quincy Bulin,
Southern Living,
1 July 2026
Hainaut used computer modelling to understand the effect of varying numbers of satellites of different brightness levels on astronomical observations.
—
Tereza Pultarova,
Space.com,
1 July 2026
The colors jump off the screen, the contrast cuts deep, and the brightness ties everything together to create a visual workstation that rivals even the most competitive laptops on the market.
—
Kelsey Fogarty,
PC Magazine,
1 July 2026
See All Example Sentences for brightness
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Janhoi McGregor,
Forbes.com,
2 July 2026
Wash Whites Together To maintain the brightness of your whites, just washing them alone can make a major difference.
—
Quincy Bulin,
Southern Living,
1 July 2026
Hainaut used computer modelling to understand the effect of varying numbers of satellites of different brightness levels on astronomical observations.
—
Tereza Pultarova,
Space.com,
1 July 2026
The colors jump off the screen, the contrast cuts deep, and the brightness ties everything together to create a visual workstation that rivals even the most competitive laptops on the market.
—
Kelsey Fogarty,
PC Magazine,
1 July 2026
See All Example Sentences for brightness
Cite this Entry
“Brightness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/brightness. Accessed 5 Jul. 2026.
Copy CitationMedical Definition
brightness
noun
bright·ness
ˈbrīt-nəs 
: the one of the three psychological dimensions of color perception by which visual stimuli are ordered continuously from light to dark and which is correlated with light intensity compare hue, saturation sense 4a
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