'whiteout' definitions:

noun

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

Cover up with a liquid correction fluid; "white-out the typo" [syn: whiteout, white out]

verb

Lose daylight visibility in heavy fog, snow, or rain [syn: white-out, whiteout]