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geodesy Syllabification: ge·od·e·sy
Pronunciation: /jēˈädəsē/

Definition of geodesy in English:


The branch of mathematics dealing with the shape and area of the earth or large portions of it.
Example sentences
  • He set up a new curriculum for applied mathematics at the university which spread over six semesters and included applications of mathematics to astronomy, geodesy and technology.
  • In the field of geodesy, however, Eratosthenes will always be remembered for his measurements of the Earth.
  • He proposed the method of triangulation and this work is the foundation of geodesy.


Example sentences
  • Triangulation, first proposed by the sixteenth-century Dutch geodesist Gemma Frisius, was until the development of satellite geodesy the main method by which regional geodetic networks were measured.
  • The earthquake at Koyna, with a magnitude of 6.9 on the Richter scale, contradicted this belief and evoked interest on the part of geologists, geodesists, dam experts, and engineers.
  • Until now, GPS has been primarily the preserve of those who know what they're doing - the surveyors, navigators, geodesists, and cartographers.


Late 16th century: from modern Latin geodaesia, from Greek geōdaisia, from 'earth' + daiein 'to divide'.

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