black spot

or black·spot

[ blak-spot for 1; blak-spot for 2 ]

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.

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

    • a dangerous area or place.

Origin of black spot

1
First recorded in 1885–90

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

British Dictionary definitions for black spot

black spot

noun
  1. a place on a road where accidents frequently occur

  2. any dangerous or difficult place

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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012