Frostbow

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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.]