- any of several diseases of wheat caused by rust fungi of the genus Puccinia.
Origin of wheat rust
First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for wheat rust
- a rust fungus, Puccinia graminis, that attacks cereals, esp wheat, and the barberry
- the disease caused by this fungus