scab
Americannoun
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the incrustation that forms over a sore or wound during healing.
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Veterinary Pathology. a mangy disease in animals, especially sheep; scabies.
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Plant Pathology.
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a disease of plants characterized by crustlike lesions on the affected parts and caused by a fungus or bacterium.
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one of these crustlike lesions.
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a worker who refuses to join a labor union or to participate in a union strike, who takes a striking worker's place on the job, or the like.
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Slang. a rascal or scoundrel.
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Metallurgy.
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a projection or roughness on an ingot or casting from a defective mold.
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a surface defect on an iron or steel piece resulting from the rolling in of scale.
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Carpentry. a short, flat piece of wood used for various purposes, as binding two timbers butted together or strengthening a timber at a weak spot.
verb (used without object)
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to become covered with a scab.
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to act or work as a scab.
noun
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the dried crusty surface of a healing skin wound or sore
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a contagious disease of sheep, a form of mange, caused by a mite ( Psoroptes communis )
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a fungal disease of plants characterized by crusty spots on the fruits, leaves, etc
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derogatory
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Also called: blackleg. a person who refuses to support a trade union's actions, esp one who replaces a worker who is on strike
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( as modifier )
scab labour
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a despicable person
verb
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to become covered with a scab
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(of a road surface) to become loose so that potholes develop
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to replace a striking worker
Other Word Forms
- scablike adjective
Etymology
Origin of scab
1200–50; 1800–10 scab for def. 4; Middle English < Old Norse skabb scab, itch; shabby, shave
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“These people believe that you take the scab off of a wound and take it off again and again until something miraculous happens,” Boritt grumbles to the camera.
It was just beneath his skin where he couldn’t scratch at it or pick it like a scab.
From Literature
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“I thought you might want to do something different today,” she said as she peeled at the Band-Aid on her elbow, revealing a bumpy scab underneath.
From Literature
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Apples are also among the most heavily treated fruits, with pesticides used in particular to fight apple scab, the main fungal threat to orchards.
From Barron's
Except the fall wasn’t that bad, and it’s already scabbed over.
From Literature
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.