Polar circle

Polar circle

Either the Arctic Circle or the Antarctic Circle.

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

polar circle

Earth science; Mapping science

Either the Arctic Circle or the Antarctic Circle.

circle

Sports; Cricket

A painted circle (or ellipse), centred in the middle of the pitch, of radius 30 yard (27 m) marked on the field. The circle separates the infield from the outfield, used in ...

circle

Hunting & fishing; Sporting events

The tendency of rabbits to run a somewhat circular path when pursued by dogs, which eventually takes them back near to the spot where they were first flushed.

circle

Financial services; General Finance

Underwriters, actual or potential, often seek out and "circle" investor interest in a new issue before final pricing. The customer circled has basically made a commitment to ...

circle

Construction; Heavy & civil

In a grader, the rotary table which supports the blade and regulates its angle.

circle

Mathematics; Algebra

The set of all points in a plane such that the distance (radius) from a given point (center of the circle) is constant.

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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