AskDefine | Define scab

Dictionary Definition



1 someone who works (or provides workers) during a strike [syn: strikebreaker, blackleg, rat]
2 the crustlike surface of a healing skin lesion


1 form a scab; "the wounds will eventually scab"
2 take the place of work of someone on strike [syn: rat, blackleg]

User Contributed Dictionary



  • /skæb/
  • Rhymes with: -æb


sceabb, Old Norse skabb, Latin scabies "scab, itch, mange." Cognate with scafan, Latin scabere "to scratch"


  1. An incrustation over a sore, wound, vesicle, or pustule, formed during healing.
  2. (colloquial or obsolete) The scabies.
  3. The mange, especially when it appears on sheep.
    • 1882: Scab was the terror of the sheep farmer, and the peril of his calling. — James Edwin Thorold Rogers, A History of Agriculture and Prices in England, Volume 4, p. 306.
  4. Several different diseases of potatoes producing pits and other damage on their surface, caused by Streptomyces -bacteria.
  5. Short form for common scab, a relatively harmless variety of scab caused by Streptomyces scabies.
  6. (founding) A slight irregular protuberance which defaces the surface of a casting, caused by the breaking away of a part of the mold.
  7. A mean, dirty, paltry fellow.
  8. A worker who works for less than the rate fixed by the trade union.
  9. A strikebreaker.
  10. Any one of various more or less destructive fungus diseases attacking cultivated plants, and forming dark-colored crustlike spots.



incrustation over a wound
See mange
group of diseases of potatoes
common scab
founding irregularity
mean, dirty, paltry fellow
worker who works for less than the rate fixed by the trade union
fungus disease of plants


  1. (intransitive) To get covered by a scab.
  2. (intransitive) To act as strikebreaker.
  3. (transitive) (Australian slang) To beg (for), cadge, bum
    I scabbed some money off a friend.


to get covered by a scab
to act as a strikebreaker
slang: to beg or bum

Extensive Definition

Scab can refer to the following:

Animal and plant diseases


See also

  • Scabies, a skin disease caused by the mite Sarcoptes scabiei

Synonyms, Antonyms and Related Words

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