1
2
: 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
Synonyms
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
Corsair says the monitor can hit 350 nits of brightness.
—
Ars Technica, 12 Jan. 2025
Ambient lighting can help set the mood, create a comfortable brightness level, and provide visibility throughout a large space.
—Nafeesah Allen, Better Homes & Gardens, 11 Jan. 2025
Each backlight zone can adjust its color as well as its brightness, which should enable a much wider gamut and a more accurate picture.
—Will Greenwald, PCMAG, 10 Jan. 2025
That’s enough to keep its LEDs running for up to three hours, 40 minutes at full brightness or up to seven hours, 20 minutes at half brightness, but not quite enough to fully recharge many smartphones more than once.
—Andrew Liszewski, The Verge, 10 Jan. 2025
See all Example Sentences for brightness 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Ars Technica, 12 Jan. 2025
Ambient lighting can help set the mood, create a comfortable brightness level, and provide visibility throughout a large space.
—Nafeesah Allen, Better Homes & Gardens, 11 Jan. 2025
Each backlight zone can adjust its color as well as its brightness, which should enable a much wider gamut and a more accurate picture.
—Will Greenwald, PCMAG, 10 Jan. 2025
That’s enough to keep its LEDs running for up to three hours, 40 minutes at full brightness or up to seven hours, 20 minutes at half brightness, but not quite enough to fully recharge many smartphones more than once.
—Andrew Liszewski, The Verge, 10 Jan. 2025
See all Example Sentences for brightness
Dictionary Entries Near brightness
Cite this Entry
“Brightness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/brightness. Accessed 24 Jan. 2025.
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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share