Definition of geodesy
: a branch of applied mathematics concerned with the determination of the size and shape of the earth and the exact positions of points on its surface and with the description of variations of its gravity field
geodesistplay \jē-ˈä-də-sist\ noun
Origin and Etymology of geodesy
Greek geōdaisia, from geō- ge- + daiesthai to divide — more at tide
First Known Use: 1853
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