night blindness

noun

: reduced visual capacity in faint light (as at night)
night-blind
ˈnīt-ˌblīnd How to pronounce night blindness (audio)
adjective

Examples of night blindness in a Sentence

Recent Examples on the Web
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.
Studies from the American Journal of Clinical Nutrition show that a diet high in vitamin A can help improve vision in dim light and reduce the risk of night blindness. — Maria Berentzen, Vogue, 12 Dec. 2024 The first sign of vitamin A deficiency is often night blindness. — Melissa Nieves, Verywell Health, 7 Aug. 2024

Word History

First Known Use

1625, in the meaning defined above

Time Traveler
The first known use of night blindness was in 1625

Rhymes for night blindness

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Browse Nearby Words

night bird
night blindness
night-blooming cereus
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Cite this Entry

“Night blindness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/night%20blindness. Accessed 29 Mar. 2025.

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Kids Definition

night blindness

noun
: subnormal vision in faint light (as at night)
night-blind adjective

Medical Definition

night blindness

noun
: reduced visual capacity in faint light (as at night)

called also nyctalopia

night-blind
ˈnīt-ˌblīnd How to pronounce night blindness (audio)
adjective

More from Merriam-Webster on night blindness

Britannica.com: Encyclopedia article about night blindness

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