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gan·is·teralso gan·nis·ter (găn′ĭ-stər)
1. A fine-grained quartzite used to line refractory furnaces.
2. A mixture of fire clay and ground quartz, used to line metallurgical furnaces.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Geological Science) a highly refractory siliceous sedimentary rock occurring beneath coal seams: used for lining furnaces
2. (Metallurgy) a highly refractory siliceous sedimentary rock occurring beneath coal seams: used for lining furnaces
3. (Metallurgy) a similar material synthesized from ground quartz and fireclay
[C19: of unknown origin]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
gan•is•ter(ˈgæn ə stər)
a highly refractory, siliceous rock used to line furnaces.
[1805–15; orig. uncertain]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.