leaf rust

noun

A host-specific fungal disease characterized by bright orange, yellow, or brown powdery pustules, usually on the undersides of leaves.

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Meanings

nounleaf rust (countable and uncountable, plural leaf rusts)

plural leaf rusts

  1. countableuncountableA host-specific fungal disease characterized by bright orange, yellow, or brown powdery pustules, usually on the undersides of leaves.
Cite this entry
APA

leaf rust. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/leaf%20rust

MLA

“leaf rust.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/leaf%20rust. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “leaf rust,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/leaf%20rust.

Source: leaf rust on Wiktionary, CC BY-SA 4.0.