antitwilight arch

[ an-tee-twahy-lahyt, an-tahy- ]
/ ˌæn tiˈtwaɪ laɪt, ˌæn taɪ- /

noun

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

Origin of antitwilight arch

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