Sine Definition
sīn
noun
The ordinate of the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of length x and measured counterclockwise from the point (1, 0) if x is positive or clockwise if x is negative.
American Heritage
The reciprocal of the cosecant.
Webster's New World
In a right triangle, the ratio of the length of the side opposite an acute angle to the length of the hypotenuse.
American Heritage
Synonyms:
preposition
Without.
Webster's New World
Other Word Forms of Sine
Noun
Singular:
sine
Plural:
sinesOrigin of Sine
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