What is the meaning of Cardioid?

(n.) An algebraic curve, so called from its resemblance to a heart.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). cardioid. Retrieved September 24, 2026, from http://smartdefine.org/cardioid/definitions/1984765
ChicagoWebster's. 2011. "cardioid" http://smartdefine.org/cardioid/definitions/1984765 (accessed September 24, 2026).
HarvardWebster's 2011, cardioid, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/cardioid/definitions/1984765>.
MLAWebster's. "cardioid" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/cardioid/definitions/1984765>
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