sinusoid
Si"nus*oid, n. Etym: [Sinus + -oid.] (Geom.) Defn: 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.
Si"nus*oid, n. Etym: [Sinus + -oid.] (Geom.) Defn: 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.