whiteout

[hwahyt-out, wahyt-]
noun
1.
Meteorology.
a.
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.
b.
a condition of heavily falling or blowing snow in which visibility is very poor.
2.
an act or instance of whiting out with a correction fluid.
3.
a white correction fluid used for this: a bottle of whiteout.
4.
a mistake, as in typing, that has been whited out with a correction fluid.

Origin:
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 Dictionary, © Random House, Inc. 2014.
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WordNet
whiteout

noun
1. an arctic atmospheric condition with clouds over snow produce a uniform whiteness and objects are difficult to see; occurs when the light reflected off the snow equals the light coming through the clouds 

verb
1. cover up with a liquid correction fluid; "white-out the typo" 
2. lose daylight visibility in heavy fog, snow, or rain [syn: white-out
WordNet® 3.0, © 2006 by Princeton University.
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Example sentences
Driving fast in a whiteout dust fog is an excellent way to get killed.
He was driving in a rushing river of cold whiteout foam.
They barely made it back, in a whiteout, but they saved their neighbors from
  starvation.
In a whiteout situation impurities in our vision appear as blobs or floaters.
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