brightness
Americannoun
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the quality of being bright.
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Optics. the luminance of a body, apart from its hue or saturation, that an observer uses to determine the comparative luminance of another body. Pure white has the maximum brightness, and pure black the minimum brightness.
noun
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the condition of being bright
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physics a former name for luminosity
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psychol the experienced intensity of light
Etymology
Origin of brightness
before 950; Middle English brihtnes, Old English beorhtnes. See bright, -ness
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.
Through a combination of experiments and computer simulations, the researchers demonstrated that adjusting the brightness, duration, and pattern of light allows them to direct crystal behavior with remarkable precision.
From Science Daily
Citrus lingers — oranges, grapefruit, tangerines — holding onto the last of their brightness like a lantern carried through fog.
From Salon
In contrast, exposure to bright light allows the pupil to constrict in response to brightness rather than focusing distance, helping maintain healthier retinal stimulation.
From Science Daily
Then in 2016, its brightness dropped sharply in less than a year.
From Science Daily
A remarkable new image from NASA's Hubble Space Telescope highlights a striking mix of brightness and shadow inside the Egg Nebula.
From Science Daily
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
