datum - What does it mean?
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Definition of 'datum'English
Noun
( en-noun)
(plural:'' data ) A measurement of something on a scale understood by both the recorder (a person or device) and the reader (another person or device). The scale is arbitrarily defined, such as from 1 to 10 by ones, 1 to 100 by 0.1, or simply ''true'' or ''false'', ''on'' or ''off'', ''yes'', ''no'', or ''maybe , etc.
(plural: data ) (philosophy) A fact known from direct observation.
(plural: data ) (philosophy) A premise from which conclusions are drawn.
(plural: datums ) (cartography|engineering) A fixed reference point.
* 2007 , Roger F Tomlinson, Thinking about GIS: geographic information system planning for managers
- Datums are another important map aspect related to projection. A datum provides a base reference for measuring locations on Earth's surface.
Derived terms
* datum circle
* datum line
* datum plane
* datum point
* datum surface
Related terms
* data, information
* die, dice
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