black arm

noun

Plant Pathology.

1. 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.

Word History and Origins

Origin of black arm¹

First recorded in 1905–10

Example Sentences

In 1969, the Warren Court ruled for high school students who wore black arm bands as a protest.

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Manchester United are wearing black arm bands to commemorate the Munich Air Disaster.

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He was known in his time as the “the fighting editor” — a posture that The Planet reflected with a logo depicting a muscular Black arm whose clenched fist radiated lightning bolts.

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Coach Giovanni Saverese wore a black arm band.

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Coach Giovanni Saverese wore a black arm band.

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