Longman Dictionary of Contemporary English homepage

Date: 1900-2000
Origin: escalade 'to climb up' (16-21 centuries) (from French, from Italian scalare) + elevator

escalator

 noun
     
escalator
Related topics: Building
es‧ca‧la‧tor [countable]
TB a set of moving stairs that take people to different levels in a building
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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