Car*te"sian (?), a. [From Renatus Cartesius, Latinized from of René Descartes: cf. F. cart'esien.]
Of or pertaining to the French philosopher René Descartes, or his philosophy.
The Cartesian argument for reality of matter.
Sir W. Hamilton.
Cartesian coordinates Geom, distance of a point from lines or planes; -- used in a system of representing geometric quantities, invented by Descartes. -- Cartesian devil, a small hollow glass figure, used in connection with a jar of water having an elastic top, to illustrate the effect of the compression or expansion of air in changing the specific gravity of bodies. -- Cartesion oval Geom., a curve such that, for any point of the curve mr + m'r' = c, where r and r' are the distances of the point from the two foci and m, m' and c are constant; -- used by Descartes.
© Webster 1913.
Car*te"sian, n.
An adherent of Descartes.
© Webster 1913.