leaf spot: Meaning and Definition of

leaf' spot"

Pronunciation: [key]
— Plant Pathol. Plant Pathol.
  1. a limited, often circular, discolored, diseased area on a leaf, usually including a central region of necrosis.
  2. any disease so characterized.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.