See Also: Thiessen(dictionary)

Thiessen (iou)



Thiessen noun. E20.
[Alfred Henry Thiessen (1872-1956), US meteorologist.]
Geography & Math. Used attrib. to designate Thiessen's method of analysing spatial distributions and concepts relating to this.
Thiessen polygon each of the polygons constructed around a set of points by drawing the perpendicular bisectors of the lines joining each point to its neighbours, so that every location in the polygon around a particular point is nearer to it than to any other such point.