black spot

1. 1.

   any of several fungous diseases of plants that produce small black spots on the plant

   Broaderplant disease

Questions about black spot

What does black spot mean?

black spot means "any of several fungous diseases of plants that produce small black spots on the plant".

Is black spot a common word?

black spot is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.