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Definition of Cardioid
1. Noun. An epicycloid in which the rolling circle equals the fixed circle.
Definition of Cardioid
1. n. An algebraic curve, so called from its resemblance to a heart.
Definition of Cardioid
1. Noun. (geometry) An epicycloid with exactly one cusp; the plane curve with polar equation - having a shape supposedly heart-shaped ¹
2. Adjective. Having this characteristic shape ¹
¹ Source: wiktionary.com
Definition of Cardioid
1. a heart-shaped curve [n -S]
Medical Definition of Cardioid
1. Resembling a heart. Origin: cardi-+ G. Eidos, resemblance (05 Mar 2000)
Lexicographical Neighbors of Cardioid
Literary usage of Cardioid
Below you will find example usage of this term as found in modern and/or classical literature:
1. An Elementary Course in Analytic Geometry by John Henry Tanner, Joseph Allen (1898)
"The cardioid. The cardioid may be defined as a special case of the limac/m ...
The more usual form in which the equation of the cardioid is written is p ..."
2. An Introduction to the Ancient and Modern Geometry of Conics: Being a by Charles Taylor (1881)
"Every focal chord of a parabola is The locus of the middle points of the divided
harmonically by the focus and cuspidal chords of a cardioid is a circle the ..."
3. A Treatise on Hydrodynamics: With Numerous Examples by Alfred Barnard Basset (1888)
"Hence the I functions are suitable for space outside the surface formed by the
revolution of a cardioid, and the К functions for space inside ; moreover the ..."
4. An Elementary Treatise on Cubic and Quartic Curves by Alfred Barnard Basset (1901)
"The cardioid (i) is the inverse of a parabola with respect to its focus, ...
We shall prove in the next section that the cardioid also belongs to the ..."
5. Elementary Chemical Microscopy by Émile Monnin Chamot (1915)
"The cardioid Ultramicroscope consists of an ordinary compound microscope M, Fig.
30, into whose substage ring the cardioid condenser C is introduced and ..."
6. An Elementary Treatise on the Differential Calculus Founded on the Method of by William Woolsey Johnson (1904)
"(2) a cardioid of one-half the linear dimension of the locus of P. The locus ...
Hence it follows that the cardioid (2), represented by the dotted line in ..."
7. Newton's Principia, First Book, Sections I., II., III.: With Notes and by Isaac Newton, Percival Frost (1878)
"... a cardioid to the radius vector. DBF. If Bqp C be a circle, whose centre is
S and diameter BC, and pm be drawn perpendicular to BC; then, ..."
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