ESCALATOR

Escalator

An escalator is a moving staircase – a conveyor transport device for carrying people between floors of a building. The device consists of a motor-driven chain of individual, linked steps that move up or down on tracks, allowing the step treads to remain horizontal.

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escalator

Noun

  1. A motor-driven mechanical device consisting of a continuous loop of steps that automatically conveys people from one floor to another.
  2. An upward or progressive course.
  3. An escalator clause.
    They agreed to a cost-of-living escalator.


The above text is a snippet from Wiktionary: escalator
and as such is available under the Creative Commons Attribution/Share-Alike License.

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