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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.
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Origin of leaf spot

First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use leaf spot in a sentence

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

Scientific 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.
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