The definition of longitude is the distance on the Earth's surface between a specific point and the prime meridian in Greenwich England, measured as a degree or the difference in time from the prime meridian.(noun)
An example of longitude is that New York City is at 74° degrees west and local time is 5 hours less than Greenwich mean time.
See longitude in Webster's New World College Dictionary
Origin: ME < L longitudo < longus, long
See longitude in American Heritage Dictionary 4
Origin: Middle English, length, a measured length
Origin: , from Old French
Origin: , from Latin longitūdō, longitūdin-
Origin: , from longus, long; see del-1 in Indo-European roots.
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