sine¹ /sīn/ (mathematics)

1. One of the six trigonometrical functions of an angle, the ratio in a right-angled triangle of the side opposite the angle to the hypotenuse (abbrev sin)
2. Orig the perpendicular from one end of an arc to the diameter through the other

sinical /sinˈi-kl/ adjective

sine curve noun

A curve showing the relationship between the size of an angle and its sine, a sinusoid

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