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snowblink

[snoh-blingk]
noun
  1. a white luminosity on the underside of clouds, caused by the reflection of light from a snow surface.
Compare iceblink.

Origin of snowblink

First recorded in 1860–65; snow + blink
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for snowblink

snowblink

noun
  1. a whitish glare in the sky reflected from snowCompare iceblink
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012