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(Railways) a steam locomotive that carries its water supply in tanks mounted around its boiler
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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|Noun||1.||tank engine - a locomotive that carries its own fuel and water; no tender is needed|
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