Check out new words added to


[kuh-roh-zhuh n] /kəˈroʊ ʒən/
the act or process of corroding; condition of being corroded.
a product of corroding, as rust.
Origin of corrosion
1350-1400; Middle English (< Middle French) < Late Latin corrōsiōn- (stem of corrōsiō) a gnawing away, equivalent to Latin corrōs(us), past participle of corrōdere to corrode + -iōn- -ion
Related forms
corrosional, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for corrosion
  • The composite is more resistant to corrosion than the steel it replaces, is easier to clean and floats.
  • The sensors track temperature, humidity and corrosion rate.
  • The cracks made the engines vulnerable to corrosion from seawater and rainwater.
  • The kind of seal required will depend on the stress and corrosion it has to withstand.
  • Sharp surface edges are subjected to abrasion, wear, and corrosion.
  • Some were displayed under bright lights or left in humid rooms, leading to fungal growth, metal corrosion and degraded plastics.
  • Stainless steel in general has significant amounts of chromium added to iron to improve its corrosion resistance.
  • The failure was blamed on metal fatigue exacerbated by corrosion due to the coastal environment of the aircraft's operation.
  • Next, try wiggling the tube in its sockets to scour away any corrosion or dust on the connections.
  • All cars today can run on ethanol without corrosion problems.
British Dictionary definitions for corrosion


a process in which a solid, esp a metal, is eaten away and changed by a chemical action, as in the oxidation of iron in the presence of water by an electrolytic process
slow deterioration by being eaten or worn away
the condition produced by or the product of corrosion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for corrosion

c.1400, from Middle French corrosion or directly from Latin corrosionem (nominative corrosio), noun of action from past participle stem of corrodere (see corrode).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
corrosion in Science
The breaking down or destruction of a material, especially a metal, through chemical reactions. The most common form of corrosion is rusting, which occurs when iron combines with oxygen and water.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for corrosion

Most English speakers likely know this word

Word Value for corrosion

Scrabble Words With Friends

Quotes with corrosion