1.Definition: a plant disease that produces a reddish-brown discoloration of leaves and stems; caused by various rust fungi

Category: General

2.Definition: a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture

Category: General

3.Definition: any of various fungi causing rust disease in plants

Related Noun(s):rust fungus

Category: Plants

4.Definition: the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water

Category: General