- an airplane curve with polar equation or , that the cardioid is a particular instance.
- A curve associated with the fourth degree, invented by Pascal. Its polar equation is r = a cos θ + b.
- Any univalve layer.
- A curve, developed and known as by Pascal, generated from a circle by the addition of a constant size to all the the radii vectores attracted from a point of their circumference as an origin, using proper account of bad radii vectores.
Synonym for "limaçon"
- limaçon of Pascal
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