zygomatic processn. Any of three bony processes that articulate with the zygomatic bone, especially the process from the temporal bone that articulates to form the zygomatic arch.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.zygomatic process n (Anatomy) a slender bony process of the temporal bone that forms part of the zygomatic arch Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014zygomat?ic proc`ess n. any of several bony processes that articulate with the cheekbone. [1735?45] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.