What is 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 called?
frostbow — 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's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00