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datum
(redirected from Geodetic origin)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
datum
The singular form of data; for example, one datum. It is rarely used, and data, its plural form, is commonly used for both singular and plural.
datum
a proposition taken for granted, often in order to construct some theoretical framework upon it; a given

datum [′dad·əm, ′dād·əm,or′däd·əm]
(computer science)
(engineering)
A direction, level, or position from which angles, heights, speeds or distances are conveniently measured.
Any numerical or geometric quantity or value that serves as a base reference for other quantities or values (such as a point, line, or surface in relation to which others are determined).
(geodesy)
The latitude and longitude of an initial point; the azimuth of a line from this point.
(geology)
The top or bottom of a bed of rock on which structure contours are drawn.

datum
A level surface or point to which other levels are related; a reference in measuring elevations.


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