Search results for 'rust':

rust noun 1 a reddish-brown coating that forms on the surface of iron or steel that has been exposed to air and moisture. 2 a similar coating which forms on other metals. 3 the colour of rust, usually a reddish-brown. 4 a a parasitic fungus that causes a serious disease of cereals and other crops, characterized by the appearance of reddish-brown patches on the leaves and other surfaces of infected plants; b the disease caused by such a fungus, which may result in serious economic losses as it affects important cereal crops, such as wheat. verb (rusted, rusting) 1 intrans to become rusty or coated with rust. 2 to make something rusty. 3 intrans to become weaker, inefficient etc, usually through lack of use. rusted adj. rusting noun, adj.
ETYMOLOGY: Anglo-Saxon.