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water-tube boiler

[waw-ter-toob, -tyoob, wot-er-]
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noun
  1. a boiler for generating steam by passing water in tubes (water tubes) through flames and hot gases.
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Origin of water-tube boiler

First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for water tube boiler

water tube boiler

noun
  1. a steam generator consisting of water drums and steam drums connected by banks of tubes through which the water is circulated. The tubes are exposed to the hot gases of the furnace and the heat transfer rate is high
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012