Many aspects of an animal or plant can be correctly called adaptations, though there are always some features whose function is in doubt. By using the term adaptation for the evolutionary process, and adaptive trait for the bodily part or function (the product), the two senses of the word may be distinguished.
Angioplasty (or Balloon angioplasty) is an endovascular procedure to widen narrowed or obstructed arteries or veins, typically to treat arterial atherosclerosis. An empty, collapsed balloon, known as a balloon catheter, is passed over a wire into the narrowed locations and then inflated to a fixed size.
balloon angioplasty. noun. Medical Definition of balloon angioplasty. : dilation of an obstructed atherosclerotic artery by the passage of a balloon catheter through the vessel to the area of disease where inflation of the catheter's tip compresses the plaque against the vessel wall.