英 [dɪsˌkʌləˈreɪʃn] 美 [dɪsˌkʌləˈreɪʃn]
n. 变色；污点
a soiled or discolored appearance
同义词： stain / discolouration
the act of changing the natural color of something by making it duller or dingier or unnatural or faded
同义词： discolouration
变色-引用次数：11
The laws of light-induced discoloration of untreated veneers and directly-painted veneers are similar.
由此可见，这两种清漆的直接涂饰对抑制染色单板的光变色作用不明显。
脱色-引用次数：6
The discoloration of natural-tocopherol by adsorption was studied. Two processes were employed: stirred tank process and fixed bed process.
本文研究了α-生育酚粗品的吸附脱色工艺，包括两种操作方式：搅拌槽和固定床。
参考来源天然α
褪色-引用次数：2
In HCl medium,trace o-dinitrobenzene can sensitively inhibit the discoloration reaction of neutral red oxidized by KIO4.
研究发现, 在盐酸介质中,痕量邻二硝基苯能灵敏地阻抑高碘酸钾氧化中性红褪色。
脱色-引用次数：6
参考来源Ca
脱色
羿色
... painting make-up补漆 discoloration羿色 water spots宁波海天注塑机水渍 ...
变色（Discoloration）：颜色不一致或与标准色更差异。 拖曳痕（Drag Mark）：顶出脱模时由碎屑造成的刮伤。
技术文摘 关键词:酱菜，辣椒酱，褪色，护色 [gap=625]Key words：pickle；pepper sauce； discoloration；color-protecting
... dischargetube放电管 discoloration脱色 disconeantenna盘锥形天线 ...
变色；污点
Leaves develop chlorosis; stems are short and slender, and anthocyanin discoloration occurs on stems, petioles, and lower leaf surfaces.
叶片变得萎黄，茎短而纤细，并且在茎、叶柄和叶片下表面会出现花青素变色。
There are potential side effects: burning and retinal discoloration.
但却有潜在的副作用，会造成视网膜灼伤、变色。
Vitamin K is helpful in reducing discoloration and the appearance of capillaries.
维生素k能够帮助减少污点和外观毛细血管。
Jeffrey Dinslage says people often ask him about unhealthy discoloration on rose leaves.
VOA : special.2010.06.15
The LaCie 324i P-IPS panel offers a realistic presentation without discoloration or inconvenient pattern distortions.
ENGADGET: LaCie pushes serious pixels on 24-inch 324i professional IPS display
Pawn Star: Proceeds to explain all the things wrong with the item (chipped paint, cracks, discoloration, etc.).
Officials had noticed that local trees seemed to be under attack, showing damage such as cracks, discoloration and tissue deterioration.