sun pillar
noun Astronomy.
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.
Nearby words
sun letter, sun lounge, sun moss, sun pan, sun parlor, sun pillar, sun porch, sun prairie, sun protection factor, sun sign, sun spider
Compare moon pillar.
Origin of sun pillar
First recorded in 1900–05
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019