whiteout

[hwahyt-out, wahyt-]

noun

Meteorology.
1. a condition, found in polar regions, in which uniform illumination from snow on the ground and from a low cloud layer makes features of the landscape indistinguishable.
2. a condition of heavily falling or blowing snow in which visibility is very poor.
an act or instance of whiting out with a correction fluid.
a white correction fluid used for this: a bottle of whiteout.

Origin of whiteout

1940–45; (defs 2–4) noun use of verb phrase white out; (def 1) white + (black)out

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS.
After the Blizzard, 100 Million People Will Be Hit With Freezing Air From the North Pole
Eric Holthaus
January 3, 2014
For, at Penn State, the whitewash has replaced the whiteout, and the “Greatest Show” is nearing its end.
Penn State Goes Too Far in Its Purge of All Things Paterno
John Hendrickson
August 29, 2012

The Commissioner and the Chief Inspector were at one in concluding that the crash has occurred in a whiteout.
Judgments of the Court of Appeal of New Zealand on Proceedings to Review Aspects of the Report of the Royal Commission of Inquiry into the Mount Erebus Aircraft Disaster
Sir Owen Woodhouse, R. B. Cooke, Ivor L. M. Richardson, Duncan Wallace McMullin, and Sir Edward Somers
The term 'whiteout' has more than one meaning as being descriptive of weather conditions in snow-covered terrain.
Judgments of the Court of Appeal of New Zealand on Proceedings to Review Aspects of the Report of the Royal Commission of Inquiry into the Mount Erebus Aircraft Disaster
Sir Owen Woodhouse, R. B. Cooke, Ivor L. M. Richardson, Duncan Wallace McMullin, and Sir Edward Somers
Flying in a 'whiteout' of that description is no different from flying in thick cloud.
Judgments of the Court of Appeal of New Zealand on Proceedings to Review Aspects of the Report of the Royal Commission of Inquiry into the Mount Erebus Aircraft Disaster
Sir Owen Woodhouse, R. B. Cooke, Ivor L. M. Richardson, Duncan Wallace McMullin, and Sir Edward Somers