Triple Point

A point where a curve intersects itself along three arcs. The above plot shows the triple point at the Origin of the Trifolium $(x^2+y^2)^2+3x^2 y-y^3=0$.

See also Double Point, Quadruple Point

References

Walker, R. J. Algebraic Curves. New York: Springer-Verlag, pp. 57-58, 1978.