Definition of Exchange Rate Mechanism in US English:

Exchange Rate Mechanism

(also ERM)

proper noun

  • An arrangement within the European Monetary System that allows the value of participating currencies to fluctuate to a defined degree in relation to each other so as to control exchange rates. Each currency is given a rate of exchange with the euro, from which it is allowed to fluctuate by no more than a specified amount; if it moves beyond this the government in question must alter its economic policies or reset the currency's rate with the euro.