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tr.v. mot·tled, mot·tling, mot·tles
To mark with spots or blotches of different shades or colors.
1. A spot or blotch of color.
2. A variegated pattern, as on marble.

[Probably back-formation from motley.]

mot′tler n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mottling - the act of coloring with areas of different shades
marking - the act of making a visible mark on a surface
References in classic literature ?
The grass, too, was less flowering, though there were still gorgeous patches mottling the greensward; and lastly, the fauna was less multitudinous.
Sheldon glanced at her sharply, and noted her face mottling, even as he looked, and turning orange and green.
lanatus) showing a mottling and mosaic symptoms were collected from Riyadh and Hail regions, Saudi Arabia in May, 2012.
Yellowing in leaves can be a sign of nitrogen or iron deficiency, but because of the irregular mottling effect you have, I suspect it is a mosaic virus.
Dr Vida Zohoori, pictured, a Reader in Oral Public Health and Nutrition at the University of Teesside, says the gap between the recommended daily intake of fluoride in children to prevent tooth decay and the level which could cause tooth mottling is too narrow.
Her body's pulse, blue veins, a mottling of scar, raised
If the foliage shows yellow mottling and streaking, the plants are stunted and the flower buds fail to develop, it may be due to viruses such as tulip-breaking virus, lily mosaic and lily mottle.
Indeed, mottling of the enamel is one of the first visible clinical signs of an excessive intake of fluoride during childhood.
The new DeVilbiss VTX spray gun uses a three-stage atomization technology to overcome the effects of mottling.
But in excessive levels, it may cause fluorosis (a mottling of the tooth enamel) which affects the appearance of teeth, but doesn't affect the strength of the enamel.
The offspring exhibited wide color differences, ranging from yellow to brown, with varying degrees of mottling in between.