orange rust

noun

Plant Pathology.

1. a disease of blackberries and raspberries, characterized by an orange, powdery mass of spores on the undersides of the leaves and stunted, misshapen foliage, caused by a rust fungus, Gymnoconia interstitialis.

Example Sentences

Zia Tile has a catalog of 64 colors, and Case Study includes four new offerings — ruddy Pompeii; cool beige Dune; burnt orange Rust; and Elemental Blue, an Yves Klein-inspired cobalt shade.

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Orange rust coated the floor, crept over pipes and trailed from crevices in the walls, according to cell phone photos taken four months before the explosion.

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While the other containers were brightly colored and marked with company logos, this one was black with big patches of orange rust.

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Dashes of orange rust formed a stripe, like a lane line on a freeway.

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Plants that are orange, rust, brown or bronze warm my heart and liven up gray days.

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