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English definition of “scab”

scab

noun [C]  /skæb/ us  

scab noun [C] (SKIN COVERING)

a hard covering of dry blood that forms over a cut or sore: Don’t pick at your scab!

scab noun [C] (WORKER)

someone who takes the place of a worker who is striking (= joining in an organized refusal to work)
(Definition of scab from the Cambridge Academic Content Dictionary © Cambridge University Press)
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