scab


scab
A crust formed by coagulation of blood, pus, serum, or a combination of these, on the surface of an ulcer, erosion, or other type of wound. [A.S. scaeb]

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scab 'skab n
1) scabies of domestic animals
2) a hardened covering of dried secretions (as blood, plasma, or pus) that forms over a wound called also crust
scab·by adj, scab·bi·er; -est
scab vi, scabbed; scab·bing to become covered with a scab <the wound scabbed over>

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n.
a hard crust of dried blood, serum, or pus that develops during the body's wound-healing process over a sore, cut, or scratch.

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(skab) 1. a crust formed on the surface of a wound. 2. to become covered with such a crust. 3. scabies in domestic animals.

Medical dictionary. 2011.