# limaçon

[lim-uh-son]

- a plane curve generated by the locus of a point on a line at a fixed distance from the point of intersection of the line with a fixed circle, as the line revolves about a point on the circumference of the circle. Equation: r = a cosθ + b.

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## Origin of limaçon^{}

1575–85; < French: literally, snail, Old French, derivative of limaz < Latin līmācem, accusative of līmāx snail, slug

Also called Pascal's limaçon.

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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## Examples from the Web for limacon

### Historical Examples

#### Up there, they suppose we have gone in the direction of the Limacon; but, below, they will see the contrary.

Cinq Mars, CompleteAlfred de Vigny

## limaçon

- a heart-shaped curve generated by a point lying on a line at a fixed distance from the intersection of the line with a fixed circle, the line rotating about a point on the circumference of the circle

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## Word Origin

French, literally: snail (so named by Pascal)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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