charcoal rot

noun

Definition of charcoal rot

  1. :  a disease of plants that is common in the southern U.S. and destructive to sweet and white potatoes and to corn and is caused by a fungus (Macrophomina phaseoli) which attacks the lower stem and roots destroying much of the tissues and forming myriads of tiny black sclerotia on what remains

There's more!

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!
Already a subscriber? Log in.

Seen and Heard

What made you want to look up charcoal rot? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!