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black arm

noun Plant Pathology.

a type or phase of bacterial blight of cotton, characterized by black, elongated lesions on the stem and branches, caused by a bacterium, Xanthomonas malvacearum.

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Nearby words

  1. black and blue,
  2. black and tan,
  3. black and tan coonhound,
  4. black and tans,
  5. black and white,
  6. black art,
  7. black arts movement,
  8. black as night,
  9. black balsam,
  10. black basaltes

Origin of black arm

First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019