scab

noun

/skæb/

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[countable] a hard dry layer that forms over and covers a wound on the skin as it gets betterTopics Illnessc2
[countable] (informal, disapproving) a worker who refuses to join a strike or takes the place of somebody on strike synonym blackleg
[uncountable] a skin disease of animals
[uncountable] a disease of plants, especially apples and potatoes, that causes a rough surface

Word OriginMiddle English (as a noun): from Old Norse skabb; related to dialect shab (compare with shabby). The sense ‘contemptible person’ (dating from the late 16th cent.) was probably influenced by Middle Dutch schabbe ‘slut’.

单词	scab
释义	scab noun /skæb/ /skæb/ jump to other results [countable] a hard dry layer that forms over and covers a wound on the skin as it gets betterTopics Illnessc2 [countable] (informal, disapproving) a worker who refuses to join a strike or takes the place of somebody on strike synonym blackleg [uncountable] a skin disease of animals [uncountable] a disease of plants, especially apples and potatoes, that causes a rough surface Word OriginMiddle English (as a noun): from Old Norse skabb; related to dialect shab (compare with shabby). The sense ‘contemptible person’ (dating from the late 16th cent.) was probably influenced by Middle Dutch schabbe ‘slut’.
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