LONGITUDE Meaning and
Definition
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Longitude is a geographical coordinate used to measure locations on the Earth's surface in an east-west direction. It is one of the two primary coordinates, along with latitude, that helps determine an accurate position on the globe. Specifically, longitude measures the angular distance of a point from the Prime Meridian, which is an imaginary line that runs from the North Pole to the South Pole and passes through the Royal Observatory in Greenwich, London.
Longitudes are measured in degrees, minutes, and seconds, with 360 degrees representing a complete circle around the Earth. Each degree of longitude is further divided into 60 minutes, and each minute is divided into 60 seconds. The eastern hemisphere is generally designated with positive longitudes, ranging from 0° at the Prime Meridian to 180° at the International Date Line. The western hemisphere, on the other hand, is designated with negative longitudes, ranging from 0° at the Prime Meridian to -180° at the International Date Line.
The concept of longitude is vital for cartographers, navigators, surveyors, and anyone involved in analyzing or representing spatial data accurately. It allows individuals to precisely locate any point on the Earth’s surface and is crucial for creating maps, establishing time zones, calculating distances, and defining boundaries. Additionally, longitude plays a significant role in the accurate functioning of global positioning systems (GPS) and aids in navigation for ships, aircraft, and other means of transportation.
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The distance east or west of any place on the earth's surface from a certain fixed point-in Eng. that point is the Royal Observatory, at Greenwich, near London-that of France is in Paris.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
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Other Common Misspellings for LONGITUDE
Etymology of LONGITUDE
The word "longitude" is derived from the Latin word "longitudo", which itself comes from the Latin words "longus" meaning "long" and "itudo", a suffix denoting "state" or "condition". It essentially refers to the "state of being long" or "lengthiness". This term was originally used to describe the angular distance of a celestial object east or west of a particular location on Earth's surface.
Similar spelling words for LONGITUDE
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