brown root disease

noun

: a disease of numerous plants (such as cacao, coconut, tea, or rubber) throughout the eastern tropics caused by a fungus (Hymenochaete noxia) and characterized by defoliation and incrustation of the roots with masses of earth and stones held together by brownish fungal threads

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now