| Longitude (longitude) |
|---|
| n. | (?) |
|---|
| Lon"gi*tude |
| [F., fr. L.
longitudo, fr. longus long.] |
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 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° or 4 h.
56 min. west of Greenwich.
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°.
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In celebration of Noah Webster's Birthday (October 16, 2009), we have prepared an updated website. 