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.
An example of someone who would be described as egocentric is a selfish person who plans his dinner party menu around his favorites, not taking into consideration the needs of his guests.