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An incrustation over a sore, wound, vesicle, or pustule, formed during healing.
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The scabies.
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The mange, especially when it appears on sheep.
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Any of several different diseases of potatoes producing pits and other damage on their surface, caused by streptomyces bacteria (but formerly believed to be caused by a fungus).
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Common scab, a relatively harmless variety of scab (potato disease) caused by Streptomyces scabies.
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Any one of various more or less destructive fungal diseases that attack cultivated plants, forming dark-colored crustlike spots.
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(founding) A slight irregular protuberance which defaces the surface of a casting, caused by the breaking away of a part of the mold.
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A mean, dirty, paltry fellow.
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A worker who acts against trade union policies, especially a strikebreaker.
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