antitwilight arch
[an-tee-twahy-lahyt, an-tahy-]
- 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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Origin of antitwilight arch
Also called anticrepuscular arch.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018