an·gi·og·ra·phy (?n?j?-?g?r?-f?)n. Radiographic visualization of the blood vessels following the injection of a radiopaque substance.an?gi·o·graph?ic (-?-gr?f??k) adj.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.angiography (?ænd?????r?f?) n (Medicine) a method of obtaining an X-ray of blood vessels by injecting into them a substance, such as one containing iodine, that shows up as opaque on an X-ray pictureCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014an?gi?og?ra?phy (?æn d?i??g r? fi) n., pl. -phies. 1. x-ray examination of blood vessels or lymphatics following injection of a radiopaque substance. 2. angiocardiography. [