In geometry, a limaçon or limacon n, also known as a limaçon of Pascal, is defined as a roulette formed when a circle rolls around the outside of a circle of equal radius. It can also be defined as the roulette formed when a circle rolls around a circle with half its radius so that the smaller circle is inside the larger circle. Thus, they belon...

Found on http://en.wikipedia.org/wiki/Limaçon

*Li`ma`çon'* (le`mȧ`sôN')

* noun* [ French

* limaçon* , lit., a snail.]

* (Geom.)* A curve of the fourth degree, invented by Pascal. Its polar equation is

* r = a cos θ + b* .

Found on http://www.encyclo.co.uk/webster/L/42

land snail.

Found on http://www.patriciawells.com/glossary/

**No exact match found**