- cardioids
- n. heart-shaped geometrical figure (Mathematics)

*English contemporary dictionary.
2014.*

### Look at other dictionaries:

**Cardioid**— is closed curve with one cusp.DefinitionIn geometry, the cardioid is an epicycloid with one cusp. Construction* epicycloid produced as the path (or locus) of a point on the circumference of a circle as that circle rolls around another fixed… … Wikipedia**Trochoid**— Tro choid, n. [Gr. ? a wheel + oid; cf. F. trocho[ i]de. See {Troche}.] (Geom.) The curve described by any point in a wheel rolling on a line; a cycloid; a roulette; in general, the curve described by any point fixedly connected with a moving… … The Collaborative International Dictionary of English**Microphone**— For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A … Wikipedia**Cardioid/Proofs**— TheoremThe curve defined by the parametric equations : x(t) = 2 r left( cos t {1 over 2} cos 2 t ight), qquad qquad (1) : y(t) = 2 r left( sin t {1 over 2} sin 2 t ight) qquad qquad (2) has the same shape as the curve defined in polar coordinates … Wikipedia**NOS stereo technique**— The NOS stereo microphone system is a very useful device to capture a stereo sound. The Nederlandse Omroep Stichting NOS = Holland Radio found by a number of practical attempts a stereo main microphone system, which results in a quite even… … Wikipedia