Definition of corrode in English:



  • 1Destroy or damage (metal, stone, or other materials) slowly by chemical action.

    ‘acid rain poisons fish and corrodes buildings’
    • ‘Boyle went on to characterize acids, noting their sour or tart taste and their ability to corrode metals.’
    • ‘The cannon was placed in a large waterproof crate of fresh water to leach out the salts, which, if untreated, would have eventually corroded the metal.’
    • ‘Even lumps of clay backfill in sandy soil will corrode metal pipes at points of clay contact.’
    • ‘Residual water left in poorly-maintained ballast tanks during hot, humid conditions could well have either started the corrosion process or made already corroded metal plates even worse.’
    • ‘A chemical reaction will cause salt to corrode silver over time, so emptying a silver saltshaker should be one of your after-dinner cleanup duties.’
    • ‘So you had all the high sodium content of the concrete corroding the steel.’
    • ‘Aqua regia is basically a mixture of nitric and hydrochloric acids, and it is one of the few chemical reagents potent enough to corrode gold.’
    • ‘Water can corrode metals given enough time, and time it will have.’
    • ‘Copper usually originates from highly acidic water, which corrodes copper plumbing.’
    • ‘These were covered in thick dust and cobwebs and were badly corroded.’
    • ‘His armor had protected him from the poison, though the acidic mix had corroded the metal in several places.’
    • ‘Older students can be assigned to research and discover what it is that is in UV rays that causes them to corrode various materials.’
    • ‘Rubber corrodes silver, and it can become so deeply etched that only a silversmith can repair the damage.’
    • ‘Aluminum is highly resistant to weathering, even in industrial atmospheres that often corrode other metals.’
    • ‘The twisted and corroded metal is situated in the memorial garden.’
    • ‘The chassis was bent and everything was badly corroded because it had been left to the mercy of the elements in an open barn.’
    • ‘The chemicals - abandoned in the old building - had corroded their metal containers and seeped into a path.’
    • ‘That was badly corroded, as was the inside of the brass cylinder itself, obviously from the action of the salt.’
    • ‘Wandering hands leave acid residues that corrode the marble.’
    • ‘This system was later discredited because chemicals added to the concrete corroded the steel used to reinforce it, making it weaker.’
    wear away, wear down, bite into, burn into, burn through, erode, abrade, consume, dissolve
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    1. 1.1[no object](of metal or other materials) be destroyed or damaged in this way.
      ‘over the years copper pipework corrodes’
      • ‘But ductile iron also corrodes, so there has been a further programme to replace both metals with polyethylene pipework.’
      • ‘And metal corrodes over time, just from exposure to the air.’
      • ‘Also, if the carbonation front reaches embedded steel, the steel can corrode.’
      • ‘They are now corroding and not doing the job they were intended to do.’
      • ‘Before it can be counted the next job will be to clean and separate the cash, as some of the metals have corroded and coins have stuck together.’
      • ‘The project became fully operational in May and the rate at which the parts were corroding they may have to be replaced very soon.’
      • ‘Because it is non-metallic, the fiber-reinforced polymer material won't corrode, giving it the durability to last at least 75 years, says Bank.’
      • ‘Copper corrodes at negligible rates in unpolluted air, water, and deaerated nonoxidizing acids.’
      • ‘Galvanized iron and copper screen were used in the past but these materials corrode over a period of time and should be replaced before they discolor the window frames and walls.’
      • ‘Platinum is a relatively inactive metal that does not corrode or tarnish in air.’
      • ‘If a few extra cents per square foot are spent to upgrade from galvanized steel to stainless steel or aluminum, the metal will not corrode as fast and will last longer.’
      • ‘Iron corrodes so quickly that an item may become too hot to touch before cracking into pieces from internal pressure generated by chemical change.’
      • ‘There were more of them, and they were corroding.’
      • ‘I mean, a lot of metal objects are corroding very badly: some of the tin cans you can only see as rust rings where their seams were, so it certainly does need a lot of care.’
      • ‘Bad idea, say the experts, as all the pipes would corrode.’
      • ‘While homes covered in other materials can corrode, rot, split, warp, dent, or crack through the years, brick does not.’
      • ‘All explosives remain dangerous in sea water, as the metal casing corrodes and explosives become unstable.’
      • ‘For example if you choose a balcony made from copper treated pine, steel fixtures can react with the copper and corrode.’
      • ‘As the steel corrodes into rust, the re-bar expands and splits the concrete open.’
      • ‘The materials that are useful for anodes must be good conductors and must not corrode too easily under oxidizing conditions.’
      rust, become rusty, tarnish
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  • 2Destroy or weaken (something) gradually.

    ‘the self-centred climate corrodes ideals and concerns about social justice’
    • ‘This trend, he argues, corrodes the boundaries between the public and the private - the expression of man's two-sided social existence as stranger and friend.’
    • ‘This kind of undisciplined thought, or rather feeling, that mistakes a wish for a fact and leads to foolish policy decisions corrodes the soul of modern man.’
    • ‘And we also know that wars undertaken when they have no clear relation either to a nation's interests or its ideals can corrode the internal life of nations or at least reveal their weaknesses.’
    • ‘Politicians and journalists are corroding the foundations of justice’
    • ‘Instead, it seems that it is causing a more complicated destabilisation - inflaming long-running local conflicts, and gradually corroding nation states.’
    • ‘If the plan is to be realized in the near future, I sincerely hope that the admission rules will be strictly adhered to, barring bribery and corruption from corroding the healthy tissue of a new-born establishment.’
    • ‘That is hardly a ringing battle cry to the party faithful or an encouragement to the independent voters, and it corrodes his halo as a selfless public servant.’
    • ‘While it has not always lived up to those values, they are there, ‘a sort of immune system eating away at political disease’, corroding the power of grand acquisitors everywhere.’
    • ‘Stars, lies and propaganda have become the stock in trade of public life, distorting reality, unhinging trust in institutions and corroding confidence.’
    • ‘So politics have failed to deliver the uplift of leadership demanded by a new and corroding imbalance in social justice.’
    • ‘Both shamefully used social division to their electoral advantage pursuing a governing style which corrodes probity and accountability.’
    • ‘In addition, it has corroded the sense of community between the workers, isolating people rather than bringing them together.’
    • ‘Impunity corrodes societies and creates hierarchical value systems over the value of human lives.’
    • ‘It is not only increasingly making the governance of the country impossible, but is increasingly corroding the moral infrastructure of our society itself.’
    • ‘This is the moment and the method to decide whether it will continue to corrode our relations and undermine our ambitions for the indefinite future, or not.’
    • ‘And to suggest that, I think, corrodes the confidence of the people of this country.’
    • ‘It is a reprehensible practice that corrodes our ability to make rational decisions.’
    • ‘The sublime landscape of the American South West is being slowly corroded by a tide of faux Spanish Colonial dream homes and equally banal commercial development.’
    • ‘Losing on certainties corrodes your confidence and makes you bet on horses with longer odds, on the reasonable grounds that you might as well fling your money at long shots rather than at favourites in which you place no faith.’
    • ‘Can he somehow persuade us, as he tried again yesterday, to draw a line under the three-year conflict that corrodes every aspect of his premiership, preventing him leading on matters domestic and foreign?’
    wear away, wear down, abrade, scrape away, grind down, crumble, dissolve, weather
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Late Middle English: from Latin corrodere, from cor- (expressing intensive force) + rodere gnaw.