sinusoid

n. sine curve, curve that describes the function y = a sin x (Mathematics)

adj. resembling a sinus, similar to a sinus

The sine wave or sinusoid is a function that occurs often in mathematics, physics, signal processing, electrical engineering, and many other fields. Its most basic form is:which describes a wavelike function of time (t) with:peak deviation from center = A (aka amplitude)angular frequency  (radians per second)phase = θWhen the phase is non-zero, the entire waveform appears to be shifted in time by the amount θ/ω seconds. A negative value represents a delay, and a positive value represents a "head-start".
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Sinusoid /si·nus·oid/ 1. resembling a sinus. 2. a form of terminal blood channel consisting of a large, irregular anastomosing vessel having a [more]Sinusoid - Community and Resources

Noun
1. tiny endothelium-lined passages for blood in the tissue of an organ
(hypernym) passage, passageway
2. the curve of y=sin x
(synonym) sine curve
(hypernym) wave, undulation

(n.)
The curve whose ordinates are proportional to the sines of the abscissas, the equation of the curve being y = a sin x. It is also called the curve of sines.