blotch

[…] in healing those Blotches and Tumours which break out in the body […]

At Coleman's Hill, the upper beds consist of yellowish, soft, gritty sandstone, containing some small calcareous fragments, a few pebbles of quartz, blotches of red shale, and fragments of sandstone with impressions of stems of plants.

There never can be equality of rewards or possessions so long as the human plan contains varied talents and differing degrees of industry and thrift, but ours ought to be a country free from the great blotches of distressed poverty.

The fungus causing blotch lives through the winter in the cankers which it has developed on twigs, water sprouts, and fruit spurs.

Characteristics of blotches are that they seldom appear at the same spatial location in consecutive frames, they tend to be smooth (little texture), and they usually have intensity values that are very different from the original contents they cover.