white light

American  

noun

1. light perceived by the eye as having the same color as sunlight at noon.

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white light British  

noun

1. light that contains all the wavelengths of visible light at approximately equal intensities, as in sunlight or the light from white-hot solids

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white light Scientific  

1. Electromagnetic radiation composed of a fairly even distribution of all of the frequencies in the visible range of the spectrum, appearing white to the eye. Light from the Sun is nearly perfect white light, although the Sun does not itself appear white when viewed on Earth due to the scattering of light with frequencies in the blue range by the atmosphere, leaving the Sun with a yellow color.

2. Light that appears white to the eye, composed of some combination of light with frequencies in the red, blue, and green parts of the spectrum.

3. See also color

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Example Sentences

And I truly did pass out — saw the white light and everything.

From Los Angeles Times • Jun. 6, 2025

"I am dead. Yet I live," Palmer says back to him, slowly moving her hand in front of her face to remove it like a mask, revealing a bright white light that washes over Cooper.

From Salon • Jan. 22, 2025

The store, illuminated by the white light of the gas pumps, was as banal an institution as one could find in this part of Maine.

From Slate • Dec. 4, 2024

When exposed to bright white light -- essentially the light of a sunny afternoon -- the cell's chloroplast shrunk to a ball, reducing its size by about 40% within five minutes.

From Science Daily • Nov. 18, 2024

As it emerges from the drop of water the white light has been split into an array of colours.

From "The Invention of Science" by David Wootton