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A fine-grained granite porphyry having a groundmass with irregular intergrowths of quartz and feldspar.
[German Granophyr : grano-, grano- + (Por)phyr, porphyry (from Medieval Latin porphyrium; see porphyry).]
gran′o·phyr′ic (-fîr′ĭk) adj.
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.
(Geological Science) a fine-grained granitic rock in which irregular crystals of intergrown quartz and feldspar are embedded in a groundmass of these minerals
[C19: from gran(ite) + -phyre after porphyry]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a porphyritic granitic rock with a micrographic intergrowth of the minerals of the groundmass.
gran`o•phy′ric (-ˈfɪr ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.