A curve drawn on polar coordinates around a fixed point, as in a polar diagram.
 Example sentencesExamples
-  One pleasant surprise was the unveiling of graceful polar curves known as limaçons from the deceptively simple equation r = b + a cos.
 -  Steve Pearson discusses some aspects of the polar curves displayed on the Wills Wing web site.
 -  However, the bird rarely glided with wings fully extended, and moreover geometry of decelerating glides cannot readily be deduced from a constant-speed glide polar curve.