Sinusoid

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Sinusoid \Si"nus*oid\, n. [Sinus + -oid.] (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}.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  sinusoid
       n 1: tiny endothelium-lined passages for blood in the tissue of
            an organ
       2: the curve of y=sin x [syn: {sine curve}]