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From The Collaborative International Dictionary of English v.0.44 [gcide]:
Sine \Si"ne\, preposition [L.] Without.
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Sine \Sine\, noun [LL. sinus a sine, L. sinus bosom, used in translating the Ar. jaib, properly, bosom, but probably read by mistake (the consonants being the same) for an original j[=i]ba sine, from Skr. j[=i]va bowstring, chord of an arc, sine.] (Trig.) (a) The length of a perpendicular drawn from one extremity of an arc of a circle to the diameter drawn through the other extremity. (b) The perpendicular itself. See {Sine of angle}, below.
{Artificial sines}, logarithms of the natural sines, or logarithmic sines.
{Curve of sines}. See {Sinusoid}.
{Natural sines}, the decimals expressing the values of the sines, the radius being unity.
{Sine of an angle}, in a circle whose radius is unity, the sine of the arc that measures the angle; in a right-angled triangle, the side opposite the given angle divided by the hypotenuse. See {Trigonometrical function}, under {Function}.
{Versed sine}, that part of the diameter between the sine and the arc.
From WordNet (r) 2.0 [wn]:
sine
noun: ratio of the opposite side to the hypotenuse of a right-angled triangle [syn: {sin}]
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