Geodesy meaning

jē-ŏdĭ-sē
Scientific discipline that deals with the measurement and representation of earth, its gravitational field and geodynamic phenomena (polar motion, earth tides, and crustal motion) in three‐dimensional, time‐varying space.
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The geologic science of the size and shape of the earth.
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The branch of applied mathematics concerned with measuring, or determining the shape of, the earth or a large part of its surface, or with locating points on its surface with precision.
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The scientific study of the size and shape of the Earth, its field of gravity, and such varying phenomena as the motion of the magnetic poles and the tides.
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Origin of geodesy

  • New Latin geōdaesia from Greek geōdaisiā geō- geo- daiesthai to divide dā- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From French géodésie, from Medieval Latin geōdaesia, from Ancient Greek γεωδαισία (geōdaisía), from γῆ (gē, “earth”) + δαίω (daíō, “to divide”).

    From Wiktionary