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rust

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rust

  [ruhst]
Use rust in a Sentence
–noun
1. Also called iron rust. the red or orange coating that forms on the surface of iron when exposed to air and moisture, consisting chiefly of ferric hydroxide and ferric oxide formed by oxidation.
2. any film or coating on metal caused by oxidation.
3. a stain resembling this coating.
4. any growth, habit, influence, or agency tending to injure, deteriorate, or impair the mind, character, abilities, usefulness, etc.
5. Plant Pathology.
a. 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.
b. Also called rust fungus. a fungus causing this disease.
c. any of several other diseases of unknown cause, characterized by reddish-brown spots or discolorations on the affected parts.
6. reddish yellow, reddish brown, or yellowish red.
–verb (used without object)
7. to become or grow rusty, as iron.
8. to contract rust.
9. to deteriorate or become impaired, as through inaction or disuse.
10. to become rust-colored.
–verb (used with object)
11. to affect with rust.
12. to impair as if with rust.
13. to make rust-colored.
–adjective
14. having the color rust.
—Verb phrases
15. rust out, (of metal pipes, machinery, etc.) to decay and become unusable through the action of rust.
16. rust through, to develop holes, breaks, or the like, because of rust.
17. rust together, to join two metal pieces, as iron pipes, by causing the joint to rust.
Origin:
bef. 900; (n.) ME; OE rūst; c. G Rost; (v.) ME rusten, deriv. of the n.; akin to red

Synonyms:
2. corrosion. 9. decay, decline.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Zero-Rust / Rust Repair
The toughest one-step metal coating on planet Earth - try it!
www.ZeroRustUSA.com/
FLOOD Reclamation Salvage
Remove Rust Corrosion & Waterproof Clean Vehicles Appliances and Tools
StrongArmSprays.Com/
rust   (rŭst)   
n.  

  1. Any of various powdery or scaly reddish-brown or reddish-yellow hydrated ferric oxides formed on iron and iron-containing materials by low-temperature oxidation in the presence of water.

  2. Any of various metallic coatings, especially oxides, formed by corrosion.

  3. A stain or coating resembling iron rust.

  4. Deterioration, as of ability, resulting from inactivity or neglect.

  5. Botany

    1. Rust fungus.

    2. A plant disease caused by a rust fungus, characterized by reddish or brownish spots on leaves, stems, and other parts.

  6. A strong brown.

v.   rust·ed, rust·ing, rusts

v.   intr.

  1. To become corroded.

  2. To deteriorate or degenerate through inactivity or neglect.

  3. To become the color of rust.

  4. Botany To develop a disease caused by a rust fungus.

v.   tr.

  1. To corrode or subject (a metal) to rust formation.

  2. To impair or spoil, as by misuse or inactivity.

  3. To color (something) a strong brown.


[Middle English, from Old English rūst; see reudh- in Indo-European roots.]
rust adj., rust'a·ble adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

rust  (n.)
O.E. rust, related to rudu "redness," from P.Gmc. *rusta- (cf. Fris. rust, O.H.G., Ger. rost, M.Du. ro(e)st), from PIE *reudh-s-to- (cf. Lith. rustas "brownish," rudeti "to rust;" L. robigo, O.C.S. ruzda "rust"), from base *reudh- "red." The verb is attested from c.1225. As a plant disease, attested from c.1340. Rust Belt "dacayed urban industrial areas of mid-central U.S." (1984) was popularized, if not coined, by Walter Mondale's presidential campaign.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: rust
Pronunciation: 'r&st
Function: noun
1 : the reddish brittle coating formed on iron especially when chemically attacked by moistair and composed essentially of hydrated ferric oxide
2 : any of numerous destructive diseases of plants produced by fungi (order Uredinales) and characterized by reddish brownpustular lesions; also : a fungus causing this
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

rust (rŭst)
n.
Any of a group of parasitic fungi of the order Uredinales that are plant pathogens, especially of cereal grains, and that can produce allergy in humans when inhaled in large numbers.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
rust   (rŭst)  Pronunciation Key 
Noun  

  1. Any of the various reddish-brown oxides of iron that form on iron and many of its alloys when they are exposed to oxygen in the presence of moisture.

    1. 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.

    2. Any of the various plant diseases caused by these fungi.


Verb   To become corroded or oxidized.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Abbreviations & Acronyms
RUST
Remote User Scheduling Terminal
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia

rust

disease of thousands of economically important plants, as well as weeds, caused by more than 4,000 species of fungi.

Learn more about rust with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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