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hard coal

noun
Origin of hard coal
1780-1790
First recorded in 1780-90
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for hard coal
Historical Examples
  • Semianthracite is also a hard coal, but it is not so hard as true anthracite.

  • But it was hard for people to be patient with the slow starting of this hard coal.

  • hard coal, for instance, is composed almost wholly of carbon; whereas soft coal has a considerable quantity of hydrogen.

    Motors James Slough Zerbe
  • No hard coal veins are known, but lignite is plentiful and its deposits are accessible.

    Area Handbook for Albania Eugene K. Keefe
  • I am writing by a hard coal fire in a round oak stove, and it makes a splendid heat.

  • hard coal costs much more in some places than soft coal, but it burns more slowly and evenly and gives off very little smoke.

    Woman's Institute Library of Cookery, Vol. 1 Woman's Institute of Domestic Arts and Sciences
  • Soft coal heats more rapidly than hard coal, but it produces considerable smoke and makes a fire that does not last so long.

    Woman's Institute Library of Cookery, Vol. 1 Woman's Institute of Domestic Arts and Sciences
  • As the nature of hard coal is such that it will hold fire for a long time, this can be done by what is called banking the fire.

    Woman's Institute Library of Cookery, Vol. 1 Woman's Institute of Domestic Arts and Sciences
  • Associated with these beds of hard coal are beds of black lead, or graphite, the substance used in making "lead" pencils.

  • I think a small lot of hard coal might always be sold here from the vessel at a profit.

    The Underground Railroad William Still
British Dictionary definitions for hard coal

hard coal

noun
1.
another name for anthracite Compare soft coal
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
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Word Value for hard

8
7
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