WordReference Random House Unabridged Dictionary of American English © 2026
oak′ wilt′, [Plant Pathol.]
- Plant Diseasesa disease of oaks, characterized by wilting and discoloration of the leaves and defoliation, usually starting at and spreading from the top of the tree and the ends of the branches, caused by a fungus, Chalara quercina.
- 1940–45, American.