Definition of "scab"
- noun
An incrustation over a sore, wound, vesicle, or pustule, formed during healing.
The scabies.
The mange, especially when it appears on sheep.
Several different diseases of potatoes producing pits and other damage on their surface, caused by Streptomyces -bacteria.
Short form for common scab, a relatively harmless variety of scab caused by Streptomyces scabies.
Any one of various more or less destructive fungus diseases attacking cultivated plants, and forming dark-colored crustlike spots.
A slight irregular protuberance which defaces the surface of a casting, caused by the breaking away of a part of the mold.
A mean, dirty, paltry fellow.
A worker who acts against trade union policies, especially a strikebreaker.
- verb
To become covered by a scab or scabs.
To form into scabs and be shed, as damaged or diseased skin.
To remove part of a surface (from).
To act as a strikebreaker.
To beg (for), to cadge or bum.
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