A parallel of a surface of revolution is the intersection of the surface with a plane orthogonal to the axis of revolution.
Surface of Revolution Parallel
See also
Meridian, Surface of RevolutionExplore with Wolfram|Alpha
References
Gray, A. Modern Differential Geometry of Curves and Surfaces with Mathematica, 2nd ed. Boca Raton, FL: CRC Press, p. 458, 1997.Referenced on Wolfram|Alpha
Surface of Revolution ParallelCite this as:
Weisstein, Eric W. "Surface of Revolution Parallel." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SurfaceofRevolutionParallel.html