whiteout
    n 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
    v 1: cover up with a liquid correction fluid; "white-out the
         typo" [syn: whiteout, white out]
    2: lose daylight visibility in heavy fog, snow, or rain [syn:
       white-out, whiteout]