Prime meridian

Prime meridian

The zero meridian, used as a reference line from which longitude east and west is measured. It passes through Greenwich, England.

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Part of Speech: noun
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Industry/Domain: Telecommunications
Category: GPS (global positioning system)
Company: Garmin
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Related terms

prime meridian

Natural environment; Coral reefs

An imaginary line running from north to south through Greenwich, England, used as the reference point for longitude.

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.

prime meridian

Geography; Physical geography

Of longitude. The line joins the north and south poles and passes through the royal observatory at greenwich in east london, england.

prime meridian

Geography; Geography

The prime meridian (0 degrees longitude) is the meridian that passes through Greenwich, England.

prime meridian

Telecommunications; GPS (global positioning system)

The zero meridian, used as a reference line from which longitude east and west is measured. It passes through Greenwich, England.

meridian

Weather; Meteorology

The great circle on the earth that passes through the North Pole, the point in question, and the South Pole. Meridians intersect the equator at right angles.

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