Definify.com
Webster 1913 Edition
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 jība
sine, from Skr. jīva
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.
Si′ne
,p
rep.
[L.]
Without.
Webster 1828 Edition
Sine
SINE
,Noun.