Sust. FEM. 1 Scientific discipline focused on determining dimensional, morphological, gravitational and magnetic large portions - and global - of the Earth's surface: higher or theoretical Geodesy. 2 Surveying (Topography ): geodesy practical, or less for which a flat ORB is commonly assumed. The term derives from the Greek noun «geodaisia», consisting of the noun 'Ge, Ges': nominative cases and genitive singular equivalent to 'Land of the Earth', a 'or' eufónica to League with the following Member: the substantive «daisia» ( pronounced desia, because the "ai" diphthong is pronounced «e» ): Division.