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leaf rust
noun
, Plant Pathology.
- a disease, especially of cereals and other grasses, characterized by rust-colored pustules of spores on the affected leaf blades and sheaths and caused by any of several rust fungi.
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Word History and Origins
Origin of leaf rust1
First recorded in 1860–65
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Example Sentences
The only danger in very early planting is that leaf-rust sometimes attacks the forward crop.
From Project Gutenberg
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