black spot

American  

[blak spot, blak spot] / ˈblæk ˈspɒt, ˈblæk ˌspɒt /

Or blackspot

noun

1. 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.

2. British.

   1. a hazardous place in a road where accidents frequently occur.

   2. a dangerous area or place.

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black spot British  

noun

1. a place on a road where accidents frequently occur

2. any dangerous or difficult place

3. a disease of roses, Diplocarpon rosae , that causes circular black blotches on the leaves

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Etymology

Origin of black spot

First recorded in 1885–90

Example Sentences

Then they repaired some of the tiles that had lost their enamel and gold leaf, making them look like black spots from down below.

From BBC

He noticed a bumpy “black spot” on her head.

From Los Angeles Times

So how exactly did this fish - easily identifiable thanks to the black spots on their chins and cheeks - come to be in Thailand?

From BBC

At rest, with its wings folded, the bug is a dull tan-gray color with black spots.

From Los Angeles Times

Pickles is a gray pig with black spots, about a foot long.

From Los Angeles Times