zygomatic bonen. A small bone in vertebrates on each side of the face below the eye socket, forming the prominence of the cheek. Also called cheekbone, malar, malar bone.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 bone n (Anatomy) either of two bones, one on each side of the skull, that form part of the side wall of the eye socket and part of the zygomatic arch; cheekbone. Also called: malar or malar bone Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014zy?gomat?ic bone? n. a bone on each side of the face below the eye, forming the prominence of the cheek; cheekbone. [1700?10] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.zygomatic boneThe cheekbone.Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited