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2017 Word of the Year

leaf rust

noun, Plant Pathology.
1.
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.
Origin of leaf rust
1860-1865
First recorded in 1860-65
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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7
8
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