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Meaning of LONGITUDE

Pronunciation:  'lânji`tood

 
WordNet Dictionary
 
 Definition: 
[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"
 

LONGITUDE is a 9 letter word that starts with L.

 

 Synonyms: line of longitude, meridian
 
 See Also: date line, dateline, great circle, International Date Line, magnetic meridian, observer's meridian, prime meridian

 

 

Webster's 1913 Dictionary
 
 Definition: 
\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.

 
Thesaurus Terms
 
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