a system of parts working together in a machine; a piece of machinery
an automatic reaction of the body against disease-causing organisms
a mental process which enables a person to avoid acknowledging unpleasant or threatening aspects of reality
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