Cosmopolitan he is the person who considers himself a citizen of the whole world, or who considers the world his homeland. It is a word originating from the Greek term cosmopolites, on what cosmos means "world" and polites means "citizen".
A cosmopolitan individual can be someone who considers the world as their homeland or a person who travels a lot and adapts easily to different cultures and ways of life. Likewise, someone cosmopolitan is someone who has been influenced by a culture that is not their culture of origin.
A city can also be considered cosmopolitan. Usually this designation is exclusive to large urban centers, where there are people from several different countries, and where it is it is possible to notice the influence of different cultures on food, architecture, customs, way of dressing, arts, traditions, food etc. Cities like New York and London are considered to be cosmopolitan cities.
In the field of botany and zoology, a cosmopolitan being is a being found almost everywhere in the world. It is a name given to animal plants with animal distribution as a result of wide limits of adaptation to environmental factors. Cosmopolitans are, for example, many parasites propagated by man, they are weeds, cockroaches and rats.