sooty mould
Britishnoun
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a fungal plant disease characterized by a blackish growth covering the surface of leaves, fruits, etc
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any of various fungi, such as species of Meliola or Capnodium, that cause this disease
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
