What usgs stand for and what do they do? The United States Geological Survey/service were and are the cartographers that converted early maps into the GPS location system known today. Edit
Medical Definition of EGOCENTRIC. 1. : limited in outlook or concern to one's own activities or needs.
Both of these examples refer to a type of defense mechanism. In Sigmund Freud's topographical model of personality, the ego is the aspect of personality that deals with reality. While doing this, the ego also has to cope with the conflicting demands of the id and the superego.