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light pillar

noun
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Definition of light pillar

: a white halo extending vertically above and below the sun or moon and caused by reflection from the upper and under surfaces of snow crystals

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“Light pillar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/light%20pillar. Accessed 23 Sep. 2020.

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