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 {latex}\sin \theta = \theta - \frac{\theta^{3}}{3!} + \frac{\theta^{5}}{5!} - \frac{\theta^{7}}{7!} + \frac{\theta^{9}}{9!} - \dots{/latex}
Examples of sine in a Sentence
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Where previously players could only activate one effect at a time, up to four effects can now sound simultaneously – with users able to choose from chorus, vibrato, flanger, delay (with tap tempo), reverb (acoustic, hall or plate) and tremolo (sine/triangle) out of the box.
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Paul Ridden, New Atlas, 7 Oct. 2024
Six hundred years ago, mathematicians were building tables of sines and cosines, which were needed for navigation, but these can now be generated by computers in seconds.
—Matteo Wong, The Atlantic, 4 Oct. 2024
Automorphic forms are a generalization of periodic functions like the sine in trigonometry, whose outputs endlessly repeat as inputs grow.
—Kevin Hartnett, Quanta Magazine, 12 Oct. 2023
These functions, such as the sine and cosine, are defined using right triangles.
—Leila Sloman, Scientific American, 10 Apr. 2023
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Paul Ridden, New Atlas, 7 Oct. 2024
Six hundred years ago, mathematicians were building tables of sines and cosines, which were needed for navigation, but these can now be generated by computers in seconds.
—Matteo Wong, The Atlantic, 4 Oct. 2024
Automorphic forms are a generalization of periodic functions like the sine in trigonometry, whose outputs endlessly repeat as inputs grow.
—Kevin Hartnett, Quanta Magazine, 12 Oct. 2023
These functions, such as the sine and cosine, are defined using right triangles.
—Leila Sloman, Scientific American, 10 Apr. 2023
See all Example Sentences for sine
Dictionary Entries Near sine
Cite this Entry
“Sine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sine. Accessed 28 Nov. 2024.
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sine
noun
: a trigonometric function that for an acute angle in a right triangle is the ratio of the side opposite the angle to the hypotenuse
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