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steam coal

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noun
  1. coal with relatively high sulfur content, suited for generating steam but not for coking.

Origin of steam coal

First recorded in 1840–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for steam coal

steam coal

noun
  1. coal suitable for use in producing steam, as in a steam-boiler
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