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.
"If this plant really were shut down, you could put a big black spot on the map," Martin Lehmann, who has worked at the Zwickau facility since 2012, told AFP.
From Barron's ● Sep. 3, 2026
The Plaid Cymru leader said the Brynglas Tunnels in Newport are an "economic problem for Wales" and that he will find a solution to tackle the traffic black spot.
From BBC ● May 28, 2026
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
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.
