Dictionary.com

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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You may have read the word "simmer" in a recipe or two, but what does it really mean?
To cook in water that begins cold and then reaches a boil.
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Origin of leaf rust

First recorded in 1860–65

Words nearby leaf rust

leaf-nosed bat, leaf peeper, leaf primordium, leaf roll, leaf roller, leaf rust, leaf scald, leaf scar, leaf sheath, leaf sight, leaf spot
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for leaf rust

  • The only danger in very early planting is that leaf-rust sometimes attacks the forward crop.

    Agriculture for Beginners|Charles William Burkett