tym·pan·ic (t?m-p?n??k)adj.1. Relating to or resembling a drum.2. also tym·pa·nal (t?m?p?-n?l) Anatomy Of or relating to the middle ear or eardrum.[From Latin tympanum, drum; see tympanum.]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.tympanic (t?m?pæn?k) adj1. (Architecture) anatomy architect of, relating to, or having a tympanum2. (Music, other) of, relating to, or resembling a drumheadCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014tym?pan?ic (t?m?pæn ?k) adj. pertaining or belonging to a tympanum. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.