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artificial light

American

[ahr-tuh-fish-uhl lahyt] / ˌɑr təˈfɪʃ əl ˈlaɪt /

noun

light from an electrical source; light from a source other than the sun, moon, stars, or flame.

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.

However, artificial light can be classed as a statutory nuisance if it "interferes with the use or enjoyment of a home" or is likely to "injure health".

From BBC • Dec. 17, 2025

A preliminary analysis to be presented at the American Heart Association's Scientific Sessions 2025 found that greater artificial light at night correlated with increased brain stress signals, inflamed blood vessels, and higher heart disease risk.

From Science Daily • Nov. 3, 2025

This new design could illuminate the future of phone and computer screens as well as other lighting applications, all while minimizing sleep disruption caused by harsh artificial light.

From Science Daily • Oct. 11, 2025

For optimal “counterillumination,” the scientists found, the artificial light has to be brighter than the background light.

From Los Angeles Times • Nov. 13, 2024

Down in the rats’ home, in the artificial light, it was hard to tell the passage of time, and she had been so engrossed in Nicodemus’s story that she had not glanced at the clock.

From "Mrs. Frisby and the Rats of NIMH" by Robert C. O'Brien

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023