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.
A theory or system of social reform which contemplates a complete reconstruction of society with a more just and equitable distribution of property and labor In popular usage the term is often employed to indicate any lawless revolutionary social scheme See Communism Fourierism Saint Simonianism forms of socialism...