ar·te·ri·o·ve·nous (är-tîr??-?-v??n?s)adj. Of, relating to, or connecting both arteries and veins.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.arteriovenous (???t??r????vi?n?s) adj (Anatomy) of, relating to, or affecting an artery and a veinCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014ar?te?ri?o?ve?nous (?r?t??r i o??vi n?s) adj. of, pertaining to, or affecting both arteries and veins. [1875?80] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.