) Mathematics. | a system of coordinates for locating a point on a plane (Cartesian plane) by its distance from each of two intersecting lines, or in space by its distance from each of three planes intersecting at a point. |

| Cartesian plane n. A plane having all points described by Cartesian coordinates. |
| Main Entry: | Cartesian Plane |
| Part of Speech: | n |
| Definition: | See coordinate plane |