Longitude - definition of longitude by The Free Dictionary
longitude lon·gi·tude (lŏn′jĭ-to͞od′, -tyo͞od′, lôn′-) n. 1. Angular distance on the earth's surface, measured east or west from the Prime Meridian at Greenwich, England, to the meridian passing through a position, expressed in degrees (or hours), minutes, and seconds. 2. Celestial longitude. [Middle English, length, a measured length ...
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