geo-, ge- +

A geometric surface or a solid figure shaped like an oval: A geodetic height refers to any section through an ellipsoid which is either an ellipse (a two-dimensional shape like a stretched circle with slightly longer flatter sides) or a circle.

Spirit leveling (device or level for determining a true horizontal or vertical reference point) of a high order of accuracy, usually extended over large areas, to furnish accurate vertical control in the vertical dimension for all surveying and mapping operations: Geodetic leveling follows the geoid and its associated irregular level surfaces rather than any mathematically determined spheroid or ellipsoid and associated regular level surfaces.

In cartography or maps, the position of a point on the surface of the Earth expressed in terms of geodetic latitude and geodetic longitude: Mr. Globe asked his students to locate certain cities in terns of their geodetic positions.

In physics, the movement of the axis of a spinning gyro in orbit around a heavenly body which is caused by the curvature of space: Geodetic precession describes the curvature of spacetime, predicted by general relativity, on a vector carried along with an orbiting body.

An artificial Earth satellite used to obtain data for geodetic triangulation calculations: In space technology, a geodetic satellite is designed or launched especially for gathering data regarding the size, shape, and mass distribution (gravity) of the Earth as well as the precise positions of points or areas on its surface.

An examination of a large area of land in which corrections are made to account for the curvature of the Earth: A geodetic survey involves research in which the form and the size of this planet are considered and for which corrections are made.

Characterized by the response of a plant to gravity in which a part of the plant adopts a horizontal position: Stolons, or runners, are stems that grow parallel to and above the ground, are slender and elongated in shape, and are considered to be geodiatropic.

A response of a plant to gravity in which a part of the plant adopts a horizontal position: Geodiatropism can be exemplified by rhizomes (as with iris and ginger) that grow parallel above ground or underground. The rhizomes also provide the growth of new plants.

Descriptive of a small, hollow, usually rounded rock, lined on the inside with inward-pointing crystals: Such geodic rocks, or geodes, are formed when mineral-rich water entering a cavity in a rock undergoes a sudden change in pressure or temperature causing crystals to form from the solution and line the cavity's walls.

1. An acronym for Ground-based Electro-Optical Deep Space Surveillance which is used in military ordnance (weapons, ammunition, combat vehicles, and equipment) for tracking objects in space: GEODSS is an optical system that uses telescopes, low-light level TV cameras, and computers for military surveillance.

The study and the science that deals with the dynamic processes or forces within the Earth's interior: Geodynamics is a branch of geophysics which is concerned with measuring, modeling, and interpreting the configurations and the motions of the crust, mantle, and core of the Earth.

A ground-living organism: There are many geodytes and among them are little geodytes, like bacteria, fungi, and algae, and larger geodytes, like earthworms, mites, and burrowing rodents.

A genotypic population (group of organisms that share a similar genetic makeup) that is isolated by physiographic barriers (physical features of the Earth's surface): A geoecotype, is a territorial population acclimated to a confined environment because of a natural selection, and restricted within a closed area.

An active geophysical method which employs electrical current to examine subsurfaces of earth materials: The geoelectric survey measures ground characteristics by sending direct signals into the soil and measuring the resulting potentials, or voltages, that are created.

The geoelectric survey involves a process that is done to determine various discoveries, such as:

• Groundwater Exploration
• Coal Exploration
• Gold Exploration
• Iron Ore Exploration
• Manganese Exploration
• Chromites Exploration

An intentional planetary-scale interference in natural systems: Geoengineering is the large-scale storage of CO₂ in the ocean interior, with the objective of promoting climate stabilization and reducing undesired anthropogenic changes.