water column


Definition of water column

  1. 1 :  water gage; also :  the column of water in the gage

  2. 2a :  a vertical pipe with valves and spout for delivering water to a locomotive tender b :  a device that is connected to the back boiler head of a locomotive and bears the water glass, the gauge cocks, and usually a lighting element

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a trip made at another's expense

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