Atherosclerosis, or hardening of the arteries, is a condition in which plaque builds up inside the arteries. Plaque is made of cholesterol, fatty substances, cellular waste products, calcium and fibrin (a clotting material in the blood). Atherosclerosis is a type of arteriosclerosis.
The definition of comity means politeness or mutual courtesy. 1  The peaceful coexistence of most of the nations in North America is an example of comity.  An example of comity is when a classroom of children are all happily involved in a project.
singularity - the quality of being one of a kind; that singularity distinguished him from all his companions. uniqueness. individualism, individuality, individuation - the quality of being individual; so absorbed by the movement that she lost all sense of individuality.