Cardioid definition

kärdē-oid
A heart-shaped plane curve, the locus of a fixed point on a circle that rolls on the circumference of another circle with the same radius.
noun
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(math.) A curve more or less in the shape of a heart, traced by a point on the circumference of a circle that rolls around the circumference of another equal circle.
noun
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A heart-shaped plane curve, the locus of a fixed point on a circle that rolls on the circumference of another circle with the same radius.
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(geometry) An epicycloid with exactly one cusp; the plane curve with polar equation - having a shape supposedly heart-shaped.
noun
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Having this characteristic shape.
adjective
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Other Word Forms

Noun

Singular:
cardioid
Plural:
cardioids

Origin of cardioid

  • cardio- +‎ -oid

    From Wiktionary