moving stair-way

moving stairway

noun
escalator ( def 1 ).
Also called moving staircase.


Origin:
1905–10

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
moving stairway

noun
a stairway whose steps move continuously on a circulating belt [syn: escalator
WordNet® 3.0, © 2006 by Princeton University.
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