zyz·zy·va (z?z??-v?)n. Any of several tropical American weevils of the genus Zyzzyva.[New Latin Zyzzyva, genus name, probably from Zyzza, former genus of leafhoppers.]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.zyzzyva (?z?z?v?) n (Animals) an American weevil or small beetleCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014