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Definition of rust
1a : the reddish brittle coating formed on iron especially when chemically attacked by moist air and composed essentially of hydrated ferric oxideb : a comparable coating produced on a metal other than iron by corrosionc : something resembling rust : accretion
2 : corrosive or injurious influence or effect
3 : any of numerous destructive diseases of plants produced by fungi (order Uredinales) and characterized by usually reddish-brown pustular lesions; also : a fungus causing this
4 : a strong reddish brown
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Examples of rust in a Sentence
an old pump covered in rust
Recent Examples of rust from the Web
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But also because Kvitova—fresh off her Birmingham title—is back in business, back on her choice surface, and back with the rust off. RD: Brad Gilbert said on ESPN conference call that 40 women could win the title.
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Showing signs of rust, Paramount and director Michael Bay's Transformers: The Last Knight is doing tepid business at the North American box office.
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While the patrons undoubtedly will find McIlroy, the question is whether McIlroy, knocking the remnants of rust off his game, will find the $1.224 million winner's check that goes with the Travelers Championship trophy.
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That failure allowed rust, iron and lead to leach from aging pipes and wind up in residents’ homes.
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Following a World Trade Organization complaint filed by the Obama administration in January, Trump signed an executive memorandum in April initiating an investigation into aluminum imports as part of a push to bring back jobs to America's rust belt.
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Showing little rust since helping Stanford claim the NCAA title in the middle of March, Ledecky touched the wall in 15:35.65, which was fifth-fastest all-time.
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Around 60 miles east of central London, the town has struggled with unemployment and deprivation and is similar to U.S. rust belt towns that championed Trump.
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Instead, wash them again in clear water using a rust remover, which can be purchased at grocery stores.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rust'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of rust
Middle English, from Old English rūst; akin to Old English rēad red — more at red
rust
Definition of rust
intransitive verb
1 : to form rust : become oxidized iron rusts
2 : to degenerate especially from inaction, lack of use, or passage of time most men would … have allowed their faculties to rust — T. B. Macaulay
3 : to become reddish brown as if with rust the leaves slowly rusted
4 : to be affected with a rust fungus
transitive verb
1 : to cause (a metal) to form rust keep up your bright swords, for the dew will rust them — William Shakespeare
2 : to impair or corrode by or as if by time, inactivity, or deleterious use
3 : to cause to become reddish brown : turn the color of rust
Examples of rust in a Sentence
Your bicycle will rust if you leave it out in the rain.
The moist air rusted the latch on the door.
The old iron fence was rusted.
Recent Examples of rust from the Web
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Golf KTVT/11 LPGA: Manulife LPGA Classic 2 p.m. Golf Web.com: Rust-Oleum Championship 4 p.m.
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GOLF European: Lyoness Open 9 a.m. GOLF Web.com: Rust-Oleum Championship 11:30 a.m. GOLF LPGA: Manulife Classic 1:30 p.m. GOLF PGA: St. Jude Classic 4 p.m.
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Web.com: Rust-Oleum Championship 9:30 a.m. TGC LPGA: Manulife Classic 11:30 a.m. TGC PGA: St. Jude Classic 2 p.m.
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So be the temples men have cherished/Crumble in ruins to rot and rust/Low lies each pillar and arch to perish/Doomed to decay and rot to dust.
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Over time, the train rusted, became unsafe and was put in storage.
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Portions of the current stands, which date from the 1930s, are rusted and there are cracks in the concrete.
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The hull is rusted after springing a leak in 2012 that flooded a substantial portion of the ship while it was docked in Norfolk, Va.
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Shortly before noon, the families lined up as Border Patrol agents opened the heavy, rusted door between the two nations.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rust'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of rust
13th century
RUST Defined for English Language Learners
rust
playDefinition of rust for English Language Learners
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: a reddish substance that forms on iron or some other metal usually when it comes in contact with moisture or air
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: a disease that causes plants to develop reddish-brown spots
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: a reddish-brown color
rust
Definition of rust for English Language Learners
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: to form rust : to become rusty
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: to cause rust to form on (something)
RUST Defined for Kids
Definition of rust for Students
1 : a reddish coating formed on metal (as iron) when it is exposed especially to moist air
2 : a plant disease caused by fungi that makes spots on plants
3 : a fungus that causes a rust
Medical Dictionary
rust
playMedical Definition of rust
1: the reddish brittle coating formed on iron especially when chemically attacked by moist air and composed essentially of hydrated ferric oxide
2: any of numerous destructive diseases of plants produced by fungi (order Uredinales) and characterized by reddish brown pustular lesions; also : a fungus causing this
Learn More about rust
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See words that rhyme with rust Spanish Central: Translation of rust Nglish: Translation of rust for Spanish speakers Britannica English: Translation of rust for Arabic speakers Britannica.com: Encyclopedia article about rust
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