sun pillar
nounAstronomy.
a halo phenomenon in which a vertical streak of light appears above and below the sun, believed to be caused by the reflection of sunlight by ice crystals with vertical axes.
Origin of sun pillar
1First recorded in 1900–05
- Compare moon pillar.
Words Nearby sun pillar
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
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