About The Word Longitude

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Longitude

Longitude Meaning & Definition
Longitude Definition And Meaning

What's The Definition Of Longitude?

[n] 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"

Synonyms | Synonyms for Longitude: line of longitude | meridian

Related Terms | Find terms related to Longitude: abscissa | aeronautical chart | altitude | Antarctic Zone | aphelion | apogee | Arctic Circle | Arctic Zone | astronomical chart | astronomical longitude | atlas | autumnal equinox | azimuth | azimuthal equidistant projection | azimuthal projection | Cartesian coordinates | cartographer | cartography | celestial chart | celestial equator | celestial globe | celestial longitude | celestial meridian | chart | chorographer | chorography | circle | climate | climatic chart | clime | colures | conic projection | contour line | contour map | coordinates | cylindrical coordinates | cylindrical projection | declination | distance | ecliptic | equator | equator coordinates | equinoctial | equinoctial circle | equinoctial colure | equinox | extension | extent | Frigid Zones | galactic longitude | general reference map | geocentric longitude | geodetic longitude | globe | gnomonic projection | graphic scale | great circle | grid line | hachure | heliocentric longitude | heliographic chart | horse latitudes | hydrographic chart | index | infinity | isoline | Lambert conformal projection | latitude | layer tint | legend | length | lengthiness | linear measures | long time | longitude in arc | longness | map | map maker | map projection | mapper | measure | Mercator projection | meridian | mileage | Miller projection | orbit | ordinate | overall length | parallel | perigee | perihelion | period | perpetuity | photogrammetrist | photogrammetry | photomap | phototopography | physical map | polar coordinates | political map | polyconic projection | prime meridian | projection | reach | relief map | representative fraction | right ascension | road map | roaring forties | scale | sinusoidal projection | small circle | solstitial colure | span | special map | stretch | subtropics | terrain map | terrestrial globe | the line | thematic map | topographer | topographic chart | topography | Torrid Zone | trajectory | transportation map | tropic | Tropic of Cancer | Tropic of Capricorn | tropics | Variable Zones | vernal equinox | weather chart | weather map | yardage | zodiac | zone

See Also | date line | dateline | great circle | International Date Line | magnetic meridian | observer's meridian | prime meridian

Longitude In Webster's Dictionary

\Lon"gi*tude\, n. [F., fr. L. longitudo, fr. 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. The longitude of their cloaks. --Sir. W. Scott. Mine [shadow] spindling into longitude immense. --Cowper. 2. (Geog.) 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 New York is 74[deg] or 4 h. 56 min. west of Greenwich. 3. (Astron.) The distance in degrees, reckoned from the vernal equinox, on the ecliptic, to a circle at right angles to the ecliptic passing through the heavenly body whose longitude is designated; as, the longitude of Capella is 79[deg]. {Geocentric longitude} (Astron.), the longitude of a heavenly body as seen from the earth. {Heliocentric longitude}, the longitude of a heavenly body, as seen from the sun's center. {Longitude stars}, certain stars whose position is known, and the data in regard to which are used in observations for finding the longitude, as by lunar distances.

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