Category:Definitions/Principal Meridians
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This category contains definitions related to Principal Meridians.
Related results can be found in Category:Principal Meridians.
A principal meridian is an arbitrary reference meridian of Earth which is used in a given context to determine (terrestrial) longitude.
Usually this is for land surveying.
Pages in category "Definitions/Principal Meridians"
The following 2 pages are in this category, out of 2 total.