### Definition of Limacon

1. Noun. (geometry) A plane curve with polar equation $\rho = a + b\,\sin\,\theta$ or $\rho = a + b\,\cos\,\theta$, 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

 limacideslimacinalimacinelimacoidlimacon (current term)limaconslimaillimailslimanlimans limaonlimaslimationlimationslimaxlimaçonlimaçon of Pascallimaçons of Pascallimblimb-kinetic apraxia limb budlimb from limblimb leadlimb myokymialimb of helixlimbalimballimbal ringlimbas

### 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 ..."