The word "corrode" is correct and usable in written English.
You can use it to refer to the action of a chemical reaction that causes the gradual destruction of a material by chemical processes (such as rusting or rotting). For example: "The salt water in the lake corroded the metal bridge over time."
Too much immigration and too little integration have, they suggest, combined to erode social cohesion, undermine national identity and corrode public trust.
Production will soon hit the "blend wall", when ethanol will meet 10% of fuel demand; the EPA allows blends of up to 10% ethanol (more might corrode engines).
To add to passengers' discomfort, the air is kept as dry as possible because moisture causes metal to corrode.
But contrary to Brazil's claim, the biggest threat to Latin American democracy today is happily not coups: it is elected presidents who themselves corrode democracy as, to an extent, Mr Zelaya did.
Salt does not corrode it, so it is suitable for use in coastal areas and its insulating properties mean that it can be used both in hot and cold climates.
But South Korea is also angry at what it sees as another attempt to corrode the Kono statement's credibility.
And any electrical device left in bodily fluids for long periods tends to corrode.
The use of carbon fibre will make it possible to pressurise cabins to a higher, more comfortable level.Nor does carbon fibre corrode, so the air inside the cabin will not have to be kept quite so dry which often leaves passengers with a wrung-out feeling after a long flight.
It may take years, but steel components that come in continuous contact with ethanol will eventually corrode.
Paradoxically, although in the long term such tactics corrode the army's cohesion and effectiveness, in the short term they enhance Mr Déby Itno's ability to keep both the army and rebels in line.Despite all this, attempts by donors to present the August accord with the CPDC as a blueprint for lasting peace are premature at best.
He wants to halt their spread, corrode them from within and, at least on the West's fragile periphery, supplant them with his own model of governance.
