Definition of "Cartesian"

Of, or pertaining to, Descartes, his mathematical methods, or his philosophy, especially with regard to its emphasis on logical analysis and its mechanistic interpretation of physical nature.  examples

(mathematics, cartography) Of, or pertaining to, co-ordinates based on mutually orthogonal axes.  examples

One who follows the philosophy of Cartesianism.  examples

(rare) The Chartreux cat.