Home › Words › G › geoformationgeoformationgeoformation · noun — A geological formation.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom geo- + formation.nounA geological formation.e.g.“It consists of recording information and analyzing the microseismic data generated in situin situ in order to determine whether the WCBM geoformation is stable or becoming unstable.” — 2011, Aspr Surd, A Foreign Capital Investment and Its Law: Efforts to Establish a Learning Institution Within a Campus of International Character:Definitions & examples from Wiktionary (CC BY-SA 3.0).