Selected coordinate point usually within an area (a polygon) on a map. In a GIS, a centroid is usually associated with a polygon. See seed point.

The mathematical or geographical center point of a polygon or the midpoint of a line. It is described as an x,y coordinate.

The center of a map object.

A point whose coordinates are the average of an associated parts dimensions (central point).

Also known as the center of mass. This is the point in an object where there is equal mass to the left, right, above and below.

The center of a peak; usually not an exact channel number.

A Centroid is the weighted mathematical center of a shape.

The center of mass of a figure. The centroid of a triangle is the intersection of the medians.

A point at the geometric centre of a polygon. This can be used to represent a polygon as a point.

the center of mass of an object of uniform density

an imaginary point around which all rotation takes place

a point indicated inside a contour, providing some kind of handle to the whole surface

a point to which information related to a polygon is attached

The point on a scatterplot with coordinates given by the mean values of the explanatory and response variables.

A point feature centrally located within, and used to identify, an area feature.

A code (usually numerical) used to locate or identify a point, such as the center of a parcel.

a point, interior to a polygon, whose coordinates are the averages of the corresponding coordinates for all the points joined to produce the polygon. It is the visual center of the polygon, and is sometimes used as the location to which the polygon's attributes are tagged.

Position at the center of a one- or two-dimensional (2D) entity such as a polygon.

In mapping or digital spatial data, the point located within a polygon which coincides with the centre of gravity of a uniform sheet having the same shape

The centroid (sometimes called a center of gravity) of a bounded surface is the center point or middle point of the area. Traditionally, this point is found by cutting the area out of cardboard and balancing it on a pin. The balance point location is the centroid.

Similar to the concept of center of gravity, except that it applies to a two dimensional shape rather than an object. For a given shape, the centroid location corresponds to the center of gravity for a thin flat plate of that shape, made from a homogeneous material.

The "center of gravity" or mathematically exact center of an irregular shaped polygon; often given as an x, y coordinate of a parcel of land.5

A co-ordinate point within a small area delineated on a map or photograph which is selected to represent the centre of the area.

is the term given to the center of an area, region, or polygon. In the case of irregularly shaped polygons, the centroid is derived mathematically and is weighted to approximate a sort of "center of gravity." Centroids are important in GIS because these discrete X-Y locations are often used to index or reference the polygon within which they are located. Sometimes attribute information is "attached," "hung," or "hooked" to the centroid location.

The center point of mass or volume

The geometric center of a feature. Of a line, it is the midpoint; of a polygon, the center of area; of a three-dimensional figure, the center of volume. The centroid will not always be where you expect it. In this example, it is in the center of a box drawn around the entire state. The centroid for Idaho is the red circle on the map.

The centre point of a polygon, often used to attach attribute information to an area such as a census ward. The centroid may be mathematically derived (such as the centre of gravity) or may be user defined. It must always be placed inside the polygon.

The centroid is the point at which a geometric figure balances. The centroid of a triangle is the point at which the three medians intersect.

In machine vision, this is the center of mass ( usually of the white pixel count ) or the center of location mark or fiducial.

This term has been replace by "representative point", which refers to a geographic co-ordinate that is a representative central location for a geographic area.

Any point used to label the attribute information link in a spatial database (polygon, line or point). The geometric center of polygon may be calculated as the average location of all vertices of a polygon boundary. Any single location within a polygon, arithmetically derived or not, to which attribute information about that polygon is linked.

Center of gravity of a polygon.

The point of concurrency of the three medians of a triangle (Lesson 3.8).

Center mass of any object.

In geometry, the centroid or barycenter of an object X in n-dimensional space is the intersection of all hyperplanes that divide X into two parts of equal moment about the hyperplane. Informally, it is the "average" of all points of X.