Definition: Longitude

From New World Encyclopedia


From Middle English, borrowed from Old French longitude, from Latin longitūdō (“length, a measured length”), from longus (“long”).


longitude (countable and uncountable, plural longitudes)

  1. (geography) Angular distance measured west or east of the prime meridian.
  2. (geography, astronomy) Any imaginary line perpendicular to the equator and part of a great circle passing through the North Pole and South Pole.

Derived terms

  • longitudinal


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