Pronunciation: (an'jē-u-plas"tē), [key]
—pl. -ties. Surg.
the repair of a blood vessel, as by inserting a balloon-tipped catheter to unclog it or by replacing part of the vessel with either a piece of the patient's own tissue or a prosthetic device: coronary angioplasty to widen an artery blocked by plaque.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.