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 degrees 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 degrees.
longitude in Dutch is lengte (geo.), lengte
longitude in French is longitude
longitude in Norwegian is lengdegrad
longitude in Spanish is longitud
longitude in Swedish is longitud