
1) Channel 4 television drama 2) French word used in English 3) Great circle 4) Line of longitude 5) Meridian 6) Science book 7) What meridians mark
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1) Dateline 2) Length
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the angular distance of a particular place on Earth as measured east or west from the prime meridian running through Greenwich, England.
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http://planetfacts.org/space-terms/

Distance east of the Prime Meridian expressed in degrees. See also latitude, above.
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http://ramblingsdc.net/Australia/WpGlossary.html

• (n.) The arc or portion of the equator intersected between the meridian of a given place and the meridian of some other place from which longitude is reckoned, as from Greenwich, England, or sometimes from the capital of a country, as from Washington or Paris. The longitude of a place is expressed either in degrees or in time; as, that of Ne...
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http://thinkexist.com/dictionary/meaning/longitude/

Position on the Earth's surface east or west of the Greenwich meridian.
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http://www.bbc.co.uk/weather/weatherwise/glossary/l.shtml

Great circles that pass through both the north and south poles, also called meridians.
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http://www.braeunig.us/space/glossary.htm

(from the article `latitude and longitude`) coordinate system by means of which the position or location of any place on the Earth`s surface can be determined and described....part in raising the quality of astronomical observations. Surveys of much higher accuracy were now feasible. The development of the chronometer ... imaginary li...
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http://www.britannica.com/eb/a-z/l/71

Image credit: NASA The angular distance measured east or west from the prime meridian. For celestial longitude, see celestial sphere.
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http://www.daviddarling.info/encyclopedia/L/longitude.html

An east/west measurement of position in relation to the Prime Meridian, an imaginary circle that passes through the north and south poles.
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http://www.encyclo.co.uk/local/20041

Position on the earth's surface eastward or westward of an agreed starting-point (meridian â€` usually the meridian-line at Greenwich Observatory, London), expressed in degrees, minutes and seconds.  Identifying a ship's longitude when out of sight of known landmarks was a lasting problem, beset by s
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http://www.encyclo.co.uk/local/20450

1. Length; measure or distance along the longest line; distinguished from breadth or thickness; as, the longitude of a room; rare now, except in a humorous sense. 'The longitude of their cloaks.' (Sir. W. Scott) 'Mine [shadow] spindling into longitude immense.' (Cowper) ... 2. <geography> The arc or portion of the equator intersected between ...
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Great circles that pass through both the north and south poles, also called meridians.
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Lon'gi·tude noun [ French, from Latin
longitudo , from
longus long.]
1. Length; measure or distance along the longest line; -- distinguished from
breadth or
thickness ; as, the
longitude of a room; rare now, except in a humorous sense.
Sir H. Wotton....
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http://www.encyclo.co.uk/webster/L/59

Angular distance east or west of the Greenwich Meridian, measured from 0 t 180 degrees east or west.
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http://www.mmsn.org/resources/glossary.html

Coordinate system used on a planetary body to give the location of a point in relation to a reference meridian. Meridians are lines drawn by cartographers and astronomers that pass through the northern point on the horizon, meeting at the celestial pole. As there is no natural starting meridian, the base or center meridian is chosen arbitrarily on ...
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http://www.moonconnection.com/moon-glossary.phtml

imaginary vertical lines that circle the earth from north to south and indicate the distance from the prime meridian
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Longitude is a west-east measurement of position on the Earth. It is defined by the angle measured from a vertical plane running through the polar axis and the prime meridian. A line connecting all places of the same longitude is termed a meridian. Longitude is measured in degrees, minutes, and seconds. Measurements of longitude range from ...
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http://www.physicalgeography.net/physgeoglos/l.html

In geography, Longitude is the the distance of a place due east or west from a meridian taken as a starting-point, this distance being measured along the equator or a parallel of latitude; in other words, it is the angle between the meridian plane of one place and some fixed meridian plane. Longitudes are generally reckoned from the meridian of Gre...
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longitude In geography and astronomy, length; the angular distance east or west of the prime meridian that stretches from the north pole to the south pole and passes through Greenwich, England. Longitude is measured in degrees, minutes, and seconds.
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East to west measurement of location.
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noun the angular distance between a point on any meridian and the prime meridian at Greenwich
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An east/west angular measurement of position in relation to the Prime Meridian. The angle between the two great circles, one being the Prime (or Greenwich) Meridian and the other a meridian passing through the point of interest. (A great circle that passes through the north and south poles, and hence contains the earth's rotation axis.)
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https://www.encyclo.co.uk/local/22025

Measurement east or west of the prime meridian in degrees, minutes and seconds.
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https://www.iat.gov/Training/pages/glossary.asp

angular distance east or west on the earth's surface, measured by the angle contained between the meridian of a particular place and some prime meridian, as that of Greenwich, England, and expressed either in degrees or by some corresponding difference in time. · · Seecelestial longitude. · Seegalactic longitude.
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https://www.infoplease.com/dictionary/longitude
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