Sinusoid

n.

1.

(Geom.) 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.

Noun	1.	sinusoid - tiny endothelium-lined passages for blood in the tissue of an organ
	2.	sinusoid - the curve of y=sin x Synonyms: sine curve

sine curve, undulation, wave