释义 |
whiteout
white·out W5138700 (wīt′out′, hwīt′-)n.1. a. A weather condition in which heavy windblown or falling snow reduces visibility almost to zero.b. A polar weather condition caused by a heavy cloud cover over the snow, in which the light coming from above is approximately equal to the light reflected from below, and which is characterized by absence of shadow, invisibility of the horizon, and discernibility of only very dark objects.2. A fluid, usually white, that dries quickly and is applied to printed matter to cover mistakes.white•out (ˈʰwaɪtˌaʊt, ˈwaɪt-) n. 1. a. a condition of polar regions in which illumination from snow on the ground and a low cloud layer obscure the landscape. b. a condition of heavily falling or blowing snow in which visibility is poor. 2. a quick-drying white fluid used for blotting out written or printed errors. [1940–45] whiteoutLoss of orientation with respect to the horizon caused by sun reflecting on snow and overcast sky.ThesaurusNoun | 1. | whiteout - 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 cloudssnow, snowfall - precipitation falling from clouds in the form of ice crystals | Verb | 1. | whiteout - cover up with a liquid correction fluid; "white-out the typo"white outcover - provide with a covering or cause to be covered; "cover her face with a handkerchief"; "cover the child with a blanket"; "cover the grave with flowers" | | 2. | whiteout - lose daylight visibility in heavy fog, snow, or rainwhite-outlose - fail to keep or to maintain; cease to have, either physically or in an abstract sense; "She lost her purse when she left it unattended on her seat" | Translationswhiteout
whiteout[′wīd‚au̇t] (meteorology) An atmospheric optical phenomenon of the polar regions in which the observer appears to be engulfed in a uniformly white glow: shadows, horizon, and clouds are not discernible; sense of depth and orientation are lost; dark objects in the field of view appear to float at an indeterminable distance. Also known as milky weather. whiteoutThe phenomenon in which a pilot experiences a loss of orientation with respect to the horizon caused by the sun reflecting on snow or a loss of horizonal definition as a result of the snow in the air being the same color as the snow-covered ground.Whiteout Drug slang A regional street term for isobutyl nitrite Imaging Lung opacification The opacification of one or both lungs on a plain AP film of the chest, which typically occurs in pneumonia, but may also be seen in heart failure Substance abuse A generic term for commercial products used to correct typed or written errors on paper documents by painting over them with an opaque white, rapid-drying liquid Vox populi A weather condition in which visibility and contrast are severely reduced by snow, with loss of a visual horizon and reference points, resulting in marked disorientation. It may be due to extremely heavy snowfall rate or other factors such as diffuse lighting from overcast clouds, mist or fog, or a background of snow Wilderness medicine Sun glare An arctic condition characterised by loss of object visualisation caused by bright sunlight reflecting off snow, resulting in snow blindnesswhiteout
Synonyms for whiteoutnoun an arctic atmospheric condition with clouds over snow produce a uniform whiteness and objects are difficult to seeRelated Wordsverb cover up with a liquid correction fluidSynonymsRelated Wordsverb lose daylight visibility in heavy fog, snow, or rainSynonymsRelated Words |