Longitude Definition
lŏnjĭ-to͝od, -tyo͝od, lôn-
noun
Length.
Webster's New World
Distance east or west on the earth's surface, measured as an arc of the equator (in degrees up to 180° or by the difference in time) between the meridian passing through a particular place and a standard or prime meridian, usually the one passing through Greenwich, England.
Webster's New World
Celestial longitude.
American Heritage
Synonyms:
- longitude in arc
- celestial longitude
- longitude in time
Other Word Forms of Longitude
Noun
Singular:
longitude
Plural:
longitudesOrigin of Longitude
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Middle English length, a measured length from Old French from Latin longitūdō longitūdin- from longus long del-1 in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
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From Middle English, from Latin longitÅ«dō (“length, a measured length"), from longus (“long").
From Wiktionary
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