Any of various powdery or scaly reddish-brown or reddish-yellow hydrated ferric oxides formed on iron and iron-containing materials by low-temperature oxidation in the presence of water.
Any of various metallic coatings, especially oxides, formed by corrosion.
A stain or coating resembling iron rust.
Deterioration, as of ability, resulting from inactivity or neglect.
Botany Rust fungus.
Botany A plant disease caused by a rust fungus, characterized by reddish or brownish spots on leaves, stems, and other parts.
A strong brown.
To become corroded.
To deteriorate or degenerate through inactivity or neglect.
To become the color of rust.
Botany To develop a disease caused by a rust fungus.
To corrode or subject (a metal) to rust formation.