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.
Define ego: the self especially as contrasted with another self or the world; egotism; self-esteem â ego in a sentence the self especially as contrasted with another self or the world; egotism; self-esteemâ¦