log·or·rhoe·a (lô?g?-r???, l?g??-)n. Chiefly British Variant of logorrhea.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.logorrhoea (?l????r??) or logorrheanexcessive, uncontrollable, or incoherent talkativenessCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014