adjective Anatomy.
of or pertaining to an artery and a vein; having characteristics of both arteries and veins.

1875–80; arterio- + venous Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
arteriovenous (ɑːˌtɪərɪəʊˈviːnəs)
of, relating to, or affecting an artery and a vein

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

arteriovenous ar·te·ri·o·ve·nous (är-tēr'ē-ō-vē'nəs)

Abbr. AV Of, relating to, or connecting arteries and veins.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Surgery may be performed for aneurysms or arteriovenous malformations that are bleeding.
My patient had been walking around for decades with an arteriovenous malformation in her head.
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