prime meridian


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Prime Meridian

prime meridian

n.
1. A meridian used as a reference line from which longitude east and west is measured.
2. Prime Meridian The meridian passing through Greenwich, England, designated as the zero meridian (0°) by an international conference in 1884.

prime meridian

n
(Physical Geography) the 0° meridian from which the other meridians or lines of longitude are calculated, usually taken to pass through Greenwich

prime′ merid′ian


n.
the meridian running through Greenwich, England, from which longitude east and west is reckoned.
[1860–65]

prime meridian

(prīm)
The meridian with a longitude of 0°, used as a reference line from which longitude east and west is measured. It passes through Greenwich, England.

prime meridian

An imaginary north-south line of longitude that passes through Greenwich, England, and is used as the basis for longitudinal measurements on the globe.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.prime meridian - meridian at zero degree longitude from which east and west are reckoned (usually the Greenwich longitude in England)
line of longitude, meridian - an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator; "all points on the same meridian have the same longitude"
References in periodicals archive ?
We are pleased to welcome Prime Meridian Holding to the growing family of investor-focused U.
uk) curates a hodge-podge of history, mostly seafaring but also taking in science at the Royal Observatory and the site of the Prime Meridian.
The UKSCA marked the 213th birthday of the Supply Corps with a cake cutting on the prime meridian at the Royal Observatory at Greenwich, England.
He describes the history of the international technical accords on the International Date Line, the system of standard time zones around the globe, and Daylight Saving Time, all of which are linked to international acceptance of Greenwich as the prime meridian.
Leather-faced, thin, weeping and now 40 years old, Lewis peddled his boat up the Thames to the Prime Meridian here--46,405 miles, and yet exactly to the spot where he and Smith had started.
Walking zero; discovering cosmic space and time along the prime meridian.
Author Chet Raymo is a physicist and astronomer, and his WALKING ZERO: DISCOVERING COSMIC SPACE AND TIME ALONG THE PRIME MERIDIAN focuses on the history of the prime meridian and its impact on scientific luminaries throughout the ages.
The prime meridian is an imaginary line that runs between the North and South Poles.
THE BOOK: The Rose Line was laid in Paris to mark zero degrees of longitude before a committee decided in 1888 that Greenwich should mark the Prime Meridian.
Neither does he exploit the justification for choosing this site--the significance of the prime meridian, tacitly marking a British intellectual (instead of naval) victory over France--which would neatly tie up his historical account.

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