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sun pillar
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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.
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Which of the following nouns has an irregular plural form?
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Origin of sun pillar
First recorded in 1900â05
Words nearby sun pillar
sunny side, sunny-side up, Sunnyvale, sun pan, sun parlor, sun pillar, sun porch, Sun Prairie, sunproof, sun protection factor, sunray
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022