red rot
noun1
A degradation process in vegetable-tanned leather, caused by humidity, environmental pollution, and high temperature, and resulting in a powdery surface and structural weakness.
2
Engineering, Metallurgy, Natural sciences, Physical sciences The chemical dezincification of brass alloys, where the zinc in the brass leaches out and leaves behind fragile or powdery copper metal.
3
Biology, Botany, Medicine, Natural sciences, Pathology, Phytopathology, Sciences A disease of sugar cane caused by the fungus Glomerella tucumanensis.