n someone who works (or provides workers) during a striken the crustlike surface of a healing skin lesionv form a scabv take the place of work of someone on strike
n. （伤口或疮口上所结的）痂( scab的名词复数 ); （植物的）斑点病; 拒不参加罢工的工人; 破坏罢工者