- plural noun a positional system that uses two axes at right angles to represent a point which is located with two numbers, giving a position on each
- plural noun a positional system that uses two axes at right angles and represents a point within these axes by means of two numbers that give the point’s position on each axis.
- (written as Cartesian coordinates)Each of the sets of numbers which locate a point on a plane or in space, according to a Cartesian coordinate system. If there are two planes, for instance, then a point is located by specifying the position in reference to each of the axes, one that is usually horizontal and denominated x, and one that is usually vertical and denominated y. Also called rectangular coordinates.