- any of several diseases of plants, characterized by reddish, brownish, or black pustules on the leaves, stems, etc., caused by fungi of the order Uredinales.
- Also called rust fungus.a fungus causing this disease.
- any of several other diseases of unknown cause, characterized by reddish-brown spots or discolorations on the affected parts.
verb (used without object)
verb (used with object)
Origin of rust
Synonyms for rust
Examples from the Web for rusted
Contemporary Examples of rusted
It was an old, rusted AMC Pacer that was missing, among other things, a fuel door.‘My Crazy Love’ Reveals the Craziest Lies People Tell for Love
November 18, 2014
The more than 50,000 who reside in West Point live mostly in shacks made of zinc with rusted tin roofs.Meet the Liberian Girls Beating Ebola
October 29, 2014
It has faded from pixelated gray to rusted ochre, fringed on the edges with black sweat grease.Whatever You Do Someone Will Die. A Short Story About Impossible Choices in Iraq
Nathan Bradley Bethea
August 31, 2014
In one, a display of rusted Soviet weapons, unearthed from around the base, recalls a war museum… a war museum within a war.How I’ll End the War: My First Week Back in Afghanistan
May 1, 2014
The wire is long gone, but a rusted snag remains entombed in the bark.How the Kings of Fracking Double-Crossed Their Way to Riches
March 13, 2014
Historical Examples of rusted
What are these bits of stone, and of wood, and rusted nails, which are set out in front of him?The White Company
Arthur Conan Doyle
The rusted tools were found which the men had thrown down so long ago.Buried Cities: Pompeii, Olympia, Mycenae
There were the four blackened walls, and a rusted iron ring in one of them.A Tale of Two Cities
He misses his, now that it's rusted so fast that it won't go.Shavings
Joseph C. Lincoln
Why should the very pin that held it to the page be rusted as if it had been there for years?Aunt Rachel
David Christie Murray
- any basidiomycetous fungus of the order Uredinales, parasitic on cereal plants, conifers, etc
- any of various plant diseases characterized by reddish-brown discoloration of the leaves and stem, esp that caused by the rust fungi
- a strong brown colour, sometimes with a reddish or yellowish tinge
- (as adjective)a rust carpet
Word Origin for rust
"red oxide of iron," Old English rust "rust; moral canker," related to rudu "redness," from Proto-Germanic *rusta- (cf. Frisian rust, Old High German and German rost, Middle Dutch ro(e)st), from PIE *reudh-s-to- (cf. Lithuanian rustas "brownish," rudeti "to rust;" Latin robigo, Old Church Slavonic ruzda "rust"), from root *reudh- "red" (see red (adj.1)).
As a plant disease, attested from mid-14c. Rust Belt "decayed urban industrial areas of mid-central U.S." (1984) was popularized, if not coined, by Walter Mondale's presidential campaign.
early 13c., from rust (n.). Transitive sense "cause to rust" is from 1590s. Related: Rusted; rusting.
- Any of various basidiomycete fungi that are parasitic on plants and produce reddish or brownish spots on leaves. Rusts attack a wide variety of plants and can cause enormous damage to crops.
- Any of the various plant diseases caused by these fungi.