- 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.
Origin of rust
OTHER WORDS FROM rustde·rust, verb (used with object)un·rust, verb (used with object)
How to use rust in a sentence
Never use food from swollen or severely rusted cans, just to be safe.How to stock your pantry to endure a long, uncertain winter|By Tim MacWelch/Outdoor Life|November 9, 2020|Popular-Science
Made from strong and rust-proof ABS plastic, this rotating sprinkler features three adjustable heads with four nozzles each.
This finish helps give the pan a non stick layer, and seals in the raw cast iron which is susceptible to rust.How Cast Iron Pans Are Made by Hand at Borough Furnace|Eater Video|October 21, 2020|Eater
The powder-coated paint resists rust, and the lightweight, fiberglass handle won’t snap easily.
Each basket is made of high quality metal and eco-friendly anti-rust surface coating, guaranteeing longevity and durability.Use every inch of your pantry with these door organizers|PopSci Commerce Team|October 16, 2020|Popular-Science
Oxygen is an extremely reactive chemical, corroding metals, rusting iron, and fueling fires.Why Did It Take So Long For Complex Life To Evolve On Earth? Blame Oxygen.|Matthew R. Francis|November 2, 2014|DAILY BEAST
Quality can be found in the most mundane works of man—even within the rusting gears of a motorcycle engine.Zen, Motorcycles, And The Cult of Tech: How Robert Pirsig’s Classic Anticipated the Future|Nathaniel Rich|August 31, 2014|DAILY BEAST
The crude, rusting poles are piled side-by-side in a snowdrift of steel on the floor of the Hirshhorn.Chinese Hold Ai WeiWei’s Passport, Denies Access to Art Opening|Blake Gopnik|October 8, 2012|DAILY BEAST
Ultimately, he's attempting to set a new course for an overweight and rusting battleship.Mayor Rahm Emanuel Reaches Flawed Deal to End Chicago Teachers Strike|James Warren|September 19, 2012|DAILY BEAST
Saying the Syrian military is “rusting,” Hijab claimed Assad now controls just 30 percent of the country's land.Former Syrian Prime Minister Riyad Hijab Calls Regime an ‘Enemy of God’|Mike Giglio|August 14, 2012|DAILY BEAST
Her sympathy with a great soldier snubbed, an active man rusting, kept her from remonstrance.Lord Ormont and his Aminta, Complete|George Meredith
You could tell, because the steel was rusting in the salt air, and the grid shone through the green paint in red-orange.
All the doors we'd passed in the cellblock were old, rusting things that dated back to when the base was first built.
Along the ridge of the hog-wallow rested the rusting Winchesters of the Mexicans—all pointing in the same direction.Sixes and Sevens|O. Henry
It was a neat building, with everything in apple-pie order, and no danger of anything; rusting there for want of oil.Cape Cod|Henry D. Thoreau
British Dictionary definitions for rust
- 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
Derived forms of rustrustless, adjective
Word Origin for rust
Scientific definitions for rust
- 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.