Cardioid
a somewhat heart-shaped curve, being the path of a point on a circle that rolls externally, without slipping, on another equal circle. Equation: r = a (1−cosA).
noun
a heart-shaped curve generated by a fixed point on a circle as it rolls around another fixed circle of equal radius, a. Equation: r = a(1 – cos φ), where r is the radius vector and φ is the polar angle
cardioid
(kär’dē-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.
Read Also:
- Cardioinhibitory
cardioinhibitory cardioinhibitory car·di·o·in·hib·i·to·ry (kär’dē-ō-ĭn-hĭb’ĭ-tôr’ē) adj. Arresting or slowing the action of the heart.
- Cardiokinetic
cardiokinetic cardiokinetic car·di·o·ki·net·ic (kär’dē-ō-kĭ-nět’ĭk, -kī-) adj. Influencing the action of the heart.
- Cardiokymogram
cardiokymogram cardiokymogram car·di·o·ky·mo·gram (kär’dē-ō-kī’mə-grām’) n. A tracing of the changes in the size of the heart made by a cardiokymograph.
- Cardiokymograph
cardiokymograph cardiokymograph car·di·o·ky·mo·graph (kär’dē-ō-kī’mə-grāf’) n. A noninvasive device, placed on the chest, capable of recording motion made by the anterior left ventricle segmental wall of the heart.
- Cardiolipin
a lipid purified from bovine heart and used as an antigen for reacting with reagin, the Wassermann antibody, in the Wassermann diagnostic test for syphilis.