Frostbow
Frostbow Frost"bow`, n. A white arc or circle in the sky attending frosty weather and formed by reflection of sunlight from ice crystals floating in the air; the parhelic circle whose center is at the zenith. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • frostbow — ˈ ̷ ̷ˌ ̷ ̷ noun : a white arc in the sky that occurs in frosty weather and is formed by reflection of sunlight from floating ice crystals : the parhelic circle that has its center at the zenith and is not to be confused with the white rainbow …   Useful english dictionary

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