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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

1. Cover up with a liquid correction fluid
   - white out
    
2. Lose daylight visibility in heavy fog, snow, or rain
   - white-out

1. Widen the interlinear spacing by inserting leads

Derived forms: white-outs, whited out, whites out, whiteouts, whiting out

Type of: cover, lose, snow, snowfall, widen

Encyclopedia: White out