zo·nate (z??n?t?) also zo·nat·ed (-n??t?d)adj. Biology Having zones of a different color or texture, as rings or bands.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.zonate (?z??ne?t) or zonatedadjmarked with, divided into, or arranged in zonesCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014