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1. Someone who works (or provides workers) during a strike
   - strikebreaker, blackleg [Brit], rat [informal]
    
2. The crustlike surface of a healing skin lesion

1. Form a scab
   "the wounds will eventually scab"
    
2. Take the place of work of someone on strike
   - fink [N. Amer, informal], rat [informal], blackleg [Brit]

Derived forms: scabs, scabbed, scabbing

Type of: do work, heal, mend, solid body substance, work, worker

Part of: cutis, skin, tegument

Encyclopedia: Scab