Polar bearing

Polar bearing

The angle, in a polar or spherical coordinate system, formed by the intersection of the meridional plane used as reference and the meridional plane through the point. This is a dihedral angle but is commonly thought to be a plane angle.

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Part of Speech: noun
Synonym(s):
Blossary:
Industry/Domain: Earth science
Category: Mapping science
Company: American Congress on Surveying & Mapping
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Related terms

polar bearing

Earth science; Mapping science

The angle, in a polar or spherical coordinate system, formed by the intersection of the meridional plane used as reference and the meridional plane through the point. This is a ...

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bearing

Industrial machinery; Industrial lubricants

A support or guide by means of which a moving part such as a shaft or axle is positioned with respect to the other parts of a mechanism.

bearing

Engineering; Electronic engineering

The direction of an object or point expressed in degrees within a 360° horizontal clockwise boundary, with the center of the circle serving as the observation point.

bearing

Military; General military

The horizontal angle at a given point measured clockwise from a specific datum point to a second point.

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Metals; Aluminum

The surface of the extruding aperture, at right angles to the die face, that controls metal flow and to some extent speed of flow which is also the conforming surface along which ...

subtropical

Earth science; Mapping science

Relating to the warmest region of the Temperate Zones that border on the Torrid Zone.

sky

Earth science; Mapping science

The region above and beyond the Earth, as it is seen looking up from the ground. Sky looks blue during the day and dark at night.

South Pole

Earth science; Mapping science

The most southern point of the Earth. The South Pole is the southern end of the axis on which the Earth rotates.

prime meridian

Earth science; Mapping science

The line of longitude that passes through the town of Greenwich, England, and that measures 0 degree. It is the line from which other longitude lines are measured.

planet

Earth science; Mapping science

A celestial body revolving around a sun in a nearly circular orbit. This definition excludes comets, which have highly elliptical orbits. However, it may also exclude some of ...

area of error

Earth science; Mapping science

A figure within which the true location of a point whose location has been determined by measurement is believed to lie, with stated degree of probability.

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