SINE – [Latin] without
Merriam-Webster Online Dictionary
sine (noun)1.
the trigonometric function that for an acute angle is the ratio between the leg opposite the angle when it is considered part of a right triangle and the hypotenuse
2.
a trigonometric function sin θ that for all real numbers θ is exactly equal to the sine of an angle of measure θ in radians and that is given by the sum of the alternating series - sine.jpg