# Geodesy vs. Geodesic — What's the Difference?

## Compare with Definitions

#### Geodesy

Geodesy ( jee-OD-ə-see) is the Earth science of accurately measuring and understanding Earth's figure (geometric shape and size), orientation in space, and gravity. The field also incorporates studies of how these properties change over time and equivalent measurements for other planets (known as planetary geodesy).
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#### Geodesic

In geometry, a geodesic () is commonly a curve representing in some sense the shortest path (arc) between two points in a surface, or more generally in a Riemannian manifold. The term also has meaning in any differentiable manifold with a connection.
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#### Geodesy

The geologic science of the size and shape of the earth.
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#### Geodesic

Of or relating to the geometry of geodesics.
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#### Geodesy

The discipline which 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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#### Geodesic

Of or relating to geodesy.
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#### Geodesy

That branch of applied mathematics which determines, by means of observations and measurements, the figures and areas of large portions of the earth's surface, or the general figure and dimenshions of the earth; or that branch of surveying in which the curvature of the earth is taken into account, as in the surveys of States, or of long lines of coast.
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#### Geodesic

Having a structure consisting of lightweight rods or poles joined so as to form interlocking polygons whose vertices lie on an imaginary sphere
A geodesic dome.
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#### Geodesy

The branch of geology that studies the shape of the earth and the determination of the exact position of geographical points
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#### Geodesic

The shortest path between two points on any mathematically defined surface.
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#### Geodesic

(geometry) The shortest curve between two points on a specific surface.
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#### Geodesic

(spherical geometry) A segment of a great circle.
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#### Geodesic

A course allowing the parallel-transport of vectors along a course that causes tangent vectors to remain tangent vectors throughout that course a straight curve, a line that is straight.
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#### Geodesic

Of or relating to geodesy.
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#### Geodesic

Of or relating to a geodesic dome.
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#### Geodesic

Of or pertaining to geodesy; geodetic.
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#### Geodesic

Made of lightweight structural supporting elements connected in a manner to provide great rigidity; - of structures; as, The geodesic dome was invented by R. Buckminster Fuller.
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#### Geodesic

A geodetic line or curve.
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#### Geodesic

(mathematics) the shortest line between two points on a mathematically defined surface (as a straight line on a plane or an arc of a great circle on a sphere)
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#### Geodesic

Of or resembling a geodesic dome
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#### Geodesic

Of or relating to or determined by geodesy
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