leaf spot

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noun Plant Pathology.

a limited, often circular, discolored, diseased area on a leaf, usually including a central region of necrosis.
any disease so characterized.

Nearby words

  1. leaf rust,
  2. leaf scald,
  3. leaf scar,
  4. leaf sheath,
  5. leaf sight,
  6. leaf spring,
  7. leaf through,
  8. leaf trace,
  9. leaf warbler,
  10. leaf-climber

Origin of leaf spot

First recorded in 1900–05

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for leaf spot

leaf spot

noun

any of various plant diseases, usually caused by fungi: characterized by dark lesions 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

Science definitions for leaf spot

leaf spot

Any of various plant diseases resulting in well-defined necrotic areas on the leaves.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.