black spot

or black·spot

[ blak spot for 1; blak spot for 2 ]
/ ˈblæk ˈspɒt for 1; ˈblæk ˌspɒt for 2 /

noun

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.
British.
  1. a hazardous place in a road where accidents frequently occur.
  2. a dangerous area or place.

Origin of black spot

First recorded in 1885–90

Example sentences from the Web for black spot

  • Alas, it is a well-spring, as we said, this black-spot; and will not tread down!

    The French Revolution |Thomas Carlyle
  • They came from what in orthodox parlance was known as the "Smwtyn Du" the heretical "black-spot" in Wales.

    An Artilleryman's Diary |Jenkin Lloyd Jones

British Dictionary definitions for black spot

black spot

noun

a place on a road where accidents frequently occur
any dangerous or difficult place
a disease of roses, Diplocarpon rosae, that causes circular black blotches on the leaves