noun

1. An incrustation over a sore, wound, vesicle, or pustule, formed during healing.

2. The scabies.

3. The mange, especially when it appears on sheep.

Synonyms: blackleg, knobstick, scalie

verb

1. To become covered by a scab or scabs.

2. To form into scabs and be shed, as damaged or diseased skin.

3. To remove part of a surface (from).