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.
The noun comity means a state of civility or courtesy between people, organizations, and nations. It's a hoped-for mutual respect and friendliness, although too infrequently the case in politics and business. Comity is one of those rare words that has retained its original meaning through the ages. The Latin adjective cÅmis, courteous, friendly, developed into the noun cÅmitÄtem, meaning courtesy or friendliness and ultimately into English comity in the 16th century.