ge·​od·​e·​sy | \ jē-ˈä-də-sē How to pronounce geodesy (audio) \

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

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Other Words from geodesy

geodesist \ jē-​ˈä-​də-​sist How to pronounce geodesist (audio) \ noun

Examples of geodesy in a Sentence

Recent Examples on the Web The authors, two geodesists (geodesy is a branch of applied mathematics focused on maps and measurements), an expert in the study of Greek and Latin texts, and a historian of science, took an innovative approach. F. Salazar, Smithsonian Magazine, "This Norwegian Island Claims to be the Fabled Land of Thule," 8 Sep. 2020 The German team addressed the problems through reconstructionist geodesy, a method of detecting the errors accurately and correcting them systematically. F. Salazar, Smithsonian Magazine, "This Norwegian Island Claims to be the Fabled Land of Thule," 8 Sep. 2020 The ability to target Red Square with an intercontinental ballistic missile launched from a silo in Montana requires a level of precision that can only come from geodesy. Greg Miller, Smithsonian, "The Untold Story of the Secret Mission to Seize Nazi Map Data," 23 Oct. 2019 There are already facilities at the Technical University of Munich, and they’ll be merged into an interdisciplinary center for aviation, aerospace, and geodesy, which is the discipline for measuring Earth. Sonja Peteranderl, The Verge, "Bavaria’s space program shot to viral fame — but it may be in trouble," 20 Oct. 2018 The Air Force sent him back to school to get a master’s degree in geodesy—the science of defining the Earth’s size and shape and the fluctuations in its gravitational field. Greg Miller, National Geographic, "How the U.S. Air Force Mapped the World at the Dawn of the Cold War," 28 Jan. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'geodesy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of geodesy

1853, in the meaning defined above

History and Etymology for geodesy

Greek geōdaisia, from geō- ge- + daiesthai to divide — more at tide entry 1

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Learn More about geodesy

Time Traveler for geodesy

Time Traveler

The first known use of geodesy was in 1853

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Statistics for geodesy

Last Updated

29 Sep 2020

Cite this Entry

“Geodesy.” Dictionary, Merriam-Webster, Accessed 26 Nov. 2020.

More from Merriam-Webster on geodesy

Britannica English: Translation of geodesy for Arabic Speakers Encyclopedia article about geodesy

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