Geo- is a prefix derived from the Greek word γη or γαια, meaning "earth", usually in the sense of "ground or land”. GEO or Geo may also refer to: Arts, entertainment, and media GEO (magazine), a popular scientific magazine Geo, a fictional character on the Nick Jr. television show, Team Umizoomi Geo City, a fictional city in the videogame Raw Danger Geo Stelar, the protagonist in Mega Man Star Force Geo TV, a pay television channel in Pakistan Neo Geo, a video game system or Computer Gaming System.Brands and enterprises Geo (automobile), a defunct brand of entry-level cars produced by General Motors GEO Group, a prison corporationComputing and science Geo (microformat), a microformat for marking up geographical coordinates in (X)HTML Gene Expression Omnibus, or GEO, a National Center for Biotechnology...