black spot
Americannoun
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Plant Pathology. a disease of plants, characterized by black spots on the fruit and foliage, twig lesions, defoliation, and rotting, caused by any of several fungi, as Diplocarpon rosae, or bacteria.
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British.
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a hazardous place in a road where accidents frequently occur.
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a dangerous area or place.
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noun
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a place on a road where accidents frequently occur
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any dangerous or difficult place
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a disease of roses, Diplocarpon rosae , that causes circular black blotches on the leaves
Etymology
Origin of black spot
First recorded in 1885–90
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.
Then came a seminar on citrus black spot, another recent arrival.
From Slate • Apr. 20, 2026
Each specimen showed wing feathers that were white with a distinct black spot at the tip.
From Science Daily • Mar. 18, 2026
WeWork's filing for bankruptcy would mark a stunning reversal of fortune for the company that was privately valued at $47 billion in 2019 and a black spot for investor SoftBank that sunk billions.
From Reuters • Oct. 31, 2023
The standout of the bunch featured each member of the Baird O’Connell clan on a New Year’s greeting card — each sporting a black spot around their eye just like Pepper had.
From Los Angeles Times • Jul. 24, 2023
Either one of them could’ve drawn it, but the black spot came to Harye.
From "The Reader" by Traci Chee
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.
