
Definition of Limacon
1. Noun. (geometry) A plane curve with polar equation $\backslash rho\; =\; a\; +\; b\backslash ,\backslash sin\backslash ,\backslash theta$ or $\backslash rho\; =\; a\; +\; b\backslash ,\backslash cos\backslash ,\backslash theta$, of which the cardioid is a special case. ¹
¹ Source: wiktionary.com
Definition of Limacon
1. a type of geometric curve [n S]
Limacon Pictures
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Lexicographical Neighbors of Limacon
Literary usage of Limacon
Below you will find example usage of this term as found in modern and/or classical literature:
1. An Elementary Treatise on Cubic and Quartic Curves by Alfred Barnard Basset (1901)
"Two of the forms of the curve in the latter case are shown in the figure, and
further information will be found in Cayley's Memoir on Caustics*. The limacon ..."
2. An Elementary Treatise on the Differential Calculus: Containing the Theory by Benjamin Williamson (1899)
"The inverse of a conic section with respect to a focus is called a limacon.
From the polar equation of a conic, its focus being origin, it is evident that ..."
3. An Elementary Course in Analytic Geometry by John Henry Tanner, Joseph Allen (1898)
"The limacon may be defined as generated from a circle by adding a constant length
to Fio.129 each of the radii vectores drawn from a ..."
4. Mathematical Questions and Solutions, from "The Educational Times", with edited by Constance I Marks (1893)
"(1) Demontrer que le lieu du point N est un limacon de PASCAL ; (2) trouver 1'aire
... 192, 237 cf WILLIAMSON'S Int. Calc., we have (1) A  area of limacon, ..."
5. Mathematical Questions and Solutions, from the "Educational Times": With by W. J. C. Miller (1871)
"(Proposed by S. ROBERTS, MA)—In a Cartesian oval with a finite node (a nodal
limacon), the difference of the lengths of the loops is four times the distance ..."