Monarchy Monarchy is a form of government headed by a single member of a royal family, usually a king, queen, or some other hereditary ruler.
Commonality Commonality is a quality that applies to materiel or systems:
a. possessing like and interchangeable characteristics enabling each to be utilized, or operated and maintained ...
Bronchopulmonary Segments The bronchopulmonary segments are the anatomic, functional, and surgical units of the lungs.