definition datum
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datum Datum definition, a single piece of information, as a fact, statistic, or code; an item of data. See more.
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Datum (geodesy) An engineering datum used in Geometric Dimensioning and Tolerancing is a feature on an object used to create a reference system for measurement.
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datum 1. pl. da·ta (-tə) A fact or proposition used to draw a conclusion or make a decision. See Usage Note at data. 2. pl. da·tums A point, line, or surface used as a reference, as in surveying, mapping, or geology.
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Definitions &Translations In geology and related fields, a stratum (plural: strata) is a layer of sedimentary rock or soil with internally consistent characteristics that distinguish it from other layers. The stratum is the fundamental unit in a stratigraphic column and forms the basis of the study of stratigraphy.
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data point Data point definition, a single fact or piece of information; a datum: Other data points, such as crime statistics, are available from the state government. See more. Dictionary.com
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datum — Charles Krauthammer. 2 plural datums mathematics : something used as a basis for calculating or measuring measuring the distance between datum points … make things more efficient for those of us whose work requires a time datum.
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verification checksum - a digit representing the sum of the digits in an instance of digital data; used to check whether errors have occurred in transmission or storage confirmation, substantiation, verification, check - additional proof that something that was believed (some fact or hypothesis or theory) is correct; fossils provided further confirmation of the evolutionary theory
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datum The definition of a datum is a fact used to make a conclusion or a point of reference in geography or geology. 1  An example of a datum is a new scientific discovery used to reach a conclusion about the common cold. An example of a datum is the assumed altitude of a specific piece of land used as the basis in calculating the altitude of the top of a mountain on the land.
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septum septum. n, pl-ta (-tə). 1. (Biology) biology anatomy a dividing partition between two tissues or cavities. 2. (Anatomy) biology anatomy a dividing partition between two tissues or cavities. 3. (Mechanical Engineering) a dividing partition or membrane between two cavities in a mechanical device.
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Chart datum Common chart datums are lowest astronomical tide and mean lower low water. A chart datum is a vertical datum and must not be confused with the horizontal datum for the chart. chart datum is generally a tidal datum; that is, a datum derived from some phase of the tide.
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- A geodetic datum is the tool used to define the shape and size of the earth, as well as the reference point for the various coordinate systems used in mapping the earth.Throughout time, hundreds of different datums have been used-each one changing with the earth views of the times.ithin the World Geodetic System (WGS), there are several different datums that have been in use throughout the years. These are WGS 84, 72, 70, and 60. The WGS 84 is currently the one in use for this system and is valid until 2010. In addition, it is one of the most widely used datums around the world.
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- A datum is a theoretically exact plane, point, or axis from which a. dimensional measurement is made. A datum feature is a part feature. that contacts a datum. A planar datum is the true geometric. counterpart of a planar datum feature.
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- Point outliers. If an individual data point can be considered anomalous with respect to the rest of the data, then the datum is termed as a point outlier. This is the simplest type of outlier and it is the focus of the majority of research on outlier detection.
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Datum (geodesy) A vertical datum is used for measuring the elevations of points on the earth's surface. They are used as a reference for specifying heights. Vertical datums are either tidal, based on sea levels, or geodetic, based on the same ellipsoid models of the earth used for computing horizontal datums.In the past, datums were measured by survey control points using level bars and optical surface measurement tools.ertical datums are either tidal, based on sea levels, or geodetic, based on the same ellipsoid models of the earth used for computing horizontal datums. In the past, datums were measured by survey control points using level bars and optical surface measurement tools.
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- definiendum(Noun) The termu2014word or phraseu2014defined in a definition. In the defining statement A lake is a large, landlocked, naturally occurring stretch of water, lake is the definiendum, stretch of water is the genus, and large, landlocked and naturally occurring are the differentiae. Origin: From definiendum, gerund of definio.
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Data The word data used to be considered the plural of datum, and still is by some English speakers. Nowadays, though, data is most commonly used in the singular, as a mass noun (like information, sand or rain).
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Datum (geodesy) A reference datum (mathematical model) is a known and constant surface which is used to describe the location of unknown points on the earth. Since reference datums can have different radii and different center points, a specific point on the earth can have substantially different coordinates depending on the datum used to make the measurement.
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GD&T Glossary and Resource Symbols and Terms Perpendicularity - is the condition of a surface, axis, or line, which is 90 deg. From a datum plane or a datum axis. Position Tolerance - defines a zone within which the axis or center plane of a feature is permitted to vary from true (theoretically exact) position.
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Definitions &Translations Wiktionary (0.00 / 0 votes) Rate this definition: septum (Noun). A wall separating two cavities; a partition; as, the nasal septum. septum (Noun). A partition that separates the cells of a fruit. septum (Noun).
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datum Whereas several bits of information taken together are called data, one is a datum. Datum is also used for a starting point of measurement, often used in surveying or engineering. The single datum that your experiment provided was that you are tall, dark and handsome.
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- The definition of a nexus is a link or connection between individuals or individual elements. An example of nexus is a genealogical tree of relatives. An example of nexus is an inter-library loan system.
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Geodetic datum A geodetic datum or geodetic system is a coordinate system, and a set of reference points, used to locate places on the Earth (or similar objects). An approximate definition of sea level is the datum WGS 84, an ellipsoid, whereas a more accurate definition is Earth Gravitational Model 2008 (EGM2008), using at least 2,159 spherical harmonics.
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Levelling Vertical line: It is a line normal to the level line at a point. It is commonly considered to be the line defined by a plumb line. Datum: Datum is any surface to which elevation are referred. The mean sea level affords a convenient datum world over, and elevations are commonly given as so much above or below sea level. It is often more convenient, however, to assume some other datum, specially, if only the relative elevation of points are required.
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A tutorial on Datums 1 A geodetic datum is a set of constants specifying the coordinate system used for geodetic control. 2  A geodetic datum is as defined above, together with the coordinate system and the set of all points and lines whose coordinates, lengths, and directions have been determined by measurement and calculation.
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datum Any numerical or geometrical quantity or set of such quantities which may serve as reference or base for other quantities. Where the concept is geometric, the plural form is datums in contrast to the normal plural data..
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- This confuses many people. In simple terms: A datum is a system which allows the location of latitudes and longitudes (and heights) to be identified onto the surface of the Earth-ie onto the surface of a ’round’ object.