black spot

noun — 7 senses

black spot

noun
7 senses
  1. 1A fungal disease among plants, particularly roses, that…
  2. 2A section of roadway that has been designated as being…
  3. 3A dangerous place or area.
  4. 4A location with poor radio signal reception, e.g. for…
  5. 5A subject or area about which little or no information…
  6. 6A fictional judicial device among pirates, consisting of…
  7. 7The spot on a snooker table where the black ball is…
1

Biology, Botany, Medicine, Natural sciences, Pathology, Phytopathology, Sciences A fungal disease among plants, particularly roses, that results in black spots on the leaves.

  • In areas where black spot is only a problem after heavy rain or later in the season, restrict spraying to these times, or if yellowing or spotted foliage is detected.2006, Mary Moody, Mary Moody's Roses, Allen & Unwin, →ISBN, page 20:
2

Transport A section of roadway that has been designated as being particularly accident-prone.

  • Indian Queens is a hamlet just off the A30, a well-known traffic black spot, and Yellowknife was Margo Kidder's hometown in Canada.2019, Will Birch, Cruel To Be Kind: The Life and Music of Nick Lowe, Hachette UK, →ISBN:
3

Broadly A dangerous place or area.

4

Communications, Electrical engineering, Engineering, Natural sciences, Physical sciences, Telecommunications A location with poor radio signal reception, e.g. for mobile phones.

  • What if—like so many rural parts of the county—this was a mobile black spot? That was easily tested. No, she had no problem dialling her own home number.2013, Judith Cutler, Life Sentence, Allison & Busby, →ISBN:
5

Figuratively A subject or area about which little or no information is available.

  • Near-synonyms: black hole, blind spot
  • Historians began to reanimate elements of the national historical memory partially destroyed by Soviet power. The closed book-shelfs^([sic]) and archives were (at least partially) opened, and “black spots” and taboos could now be tackled by national historians.2003, Andreas Kappeler, “The Russian Empire and Its Nationalities in Post-Soviet Historiographies”, in Hayashi Tadayuki, editor, The Construction and Deconstruction of National Histories in Slavic Eurasia, Sapporo: Slavic Research Center, Hokkaido University, →ISBN, page 38:
6

Fiction, Literature, Media, Publishing A fictional judicial device among pirates, consisting of a black circle indicating condemnation.

  • I went down on my knees at once. On the floor close to his hand there was a little round of paper, blackened on the one side. I could not doubt that this was the black spot; and taking it up, I found written on the other side, in a very good, clear hand, this short message: “You have till ten to-night.”1881–1882, Robert Louis Stevenson, Treasure Island, London; Paris: Cassell & Company, published 14 November 1883, →OCLC, part I (The Old Buccaneer), page 31:
7

Ball games, Games, Hobbies, Lifestyle, Snooker, Sports The spot on a snooker table where the black ball is normally placed.

Derived terms
citrus black spot

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.