cartesian

/kɑrˈtiʒən/
adjective
  1. Relating to the French philosopher René Descartes or his ideas, especially his method of systematic doubt and the dualism of mind and body.
    • The Cartesian philosophy emphasizes the separation of mind and body.
    • Her approach to problem-solving is very Cartesian, starting from first principles.
    • Many modern debates in philosophy still reference Cartesian dualism.
  2. Relating to a coordinate system that uses perpendicular axes (x, y, and sometimes z) to locate points in space.
    • Engineers use Cartesian coordinates to design 3D models.
    • In math class, we plotted points on a Cartesian plane.
    • The Cartesian coordinate system is essential for graphing equations.
noun
  1. A follower of the philosophy of René Descartes.
    • The debate between Cartesians and empiricists shaped modern philosophy.
    • As a Cartesian, she believed that clear and distinct ideas are the foundation of knowledge.
    • The Cartesians argued that the mind and body are distinct substances.
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