/ Dictionary / Index C Cartesian coordinates: Meaning and Definition of Find definitions for: Carte'sian coor'dinates Pronunciation: [key] — Math. Math. a system of coordinates for locating a point on a planeby its distance from each of two intersecting lines, or in space by its distance from each of three planes intersecting at a point. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Cartesian Cartesian diver Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language