• An incrustation over a sore, wound, vesicle, or pustule, formed by the drying up of the discharge from the diseased part. • The itch in man; also, the scurvy. • The mange, esp. when it appears on sheep. • A disease of potatoes producing pits in their surface, caused by a minute fungus (Tiburcinia Scabies). • A slight irregular protuberance which defaces the surface of a casting, caused by the breaking away of a part of the mold. • A mean, dirty, paltry fellow. • A nickname for a workman who engages for lower wages than are fixed by the trades unions; also, for one who takes the place of a workman on a strike. • To become covered with a scab; as, the wound scabbed over.