limaçon

noun
li·​ma·​çon | \ˌlē-mə-ˈsōⁿ \

Definition of limaçon 

: a plane curve whose equation in polar coordinates has one of the forms ρ = a cos θ ± b or ρ = a sin θ ± b and which reduces to a cardioid when a = b

First Known Use of limaçon

1873, in the meaning defined above

History and Etymology for limaçon

French, literally, snail, from Old French, diminutive of limaz slug, snail, from Latin limax; akin to Russian slimak snail and probably to Old English līm birdlime — more at lime

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Dictionary Entries near limaçon

limacine

Limacodidae

limacoid

limaçon

liman

Limanda

limation

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Time Traveler for limaçon

The first known use of limaçon was in 1873

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