'indexation' definitions:

Definition of 'indexation'

(from WordNet)
noun
A system of economic regulation: wages and interest are tied to the cost-of-living index in order to reduce the effects of inflation

Definition of 'indexation'

From: GCIDE
  • indexation \indexation\ n. a system of economic regulation in which wages and interest are tied to the cost-of-living index in order to compenaste for the effects of inflation. [WordNet 1.5]