[lem-nis-kit, lem-nis-keyt, -kit]
noun Analytic Geometry.
a plane curve generated by the locus of the point at which a variable tangent to a rectangular hyperbola intersects a perpendicular from the center to the tangent. Equation: r2 = 2a2cosθ.
Origin of lemniscate
Also called Bernoulli's lemniscate.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a closed plane curve consisting of two symmetrical loops meeting at a node. Equation: (x ² + y ²)² = a ²(x ² – y ²), where a is the greatest distance from the curve to the origin. The symbol for infinity (∞) is an example
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012