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antitwilight arch

[an-tee-twahy-lahyt, an-tahy-]

noun

a narrow band, pink or with a purple cast, that sometimes appears at twilight just above the horizon opposite the sun.

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Read more in this article about some frequently asked questions and fun facts related to our definitions.

Origin of antitwilight arch

anti- + twilight

Also called anticrepuscular arch.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019