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1. A clause in a contract that provides for an increase or a decrease in wages or prices or benefits etc. depending on certain conditions (as a change in the cost of living index)
   - escalator clause
    
2. A stairway whose steps move continuously on a circulating belt
   - moving staircase, moving stairway

Derived forms: escalators

Type of: article, clause, staircase, stairway

Encyclopedia: Escalator