(trigonometry, mathematics) In a right triangle, the ratio of the length of the side opposite an angle to the length of the hypotenuse.

(genetics) Acronym of short interspersed element, a type of retrotransposon in genomics. / Acronym of selective inhibitors of nuclear export, a drug for epithelioid sarcoma.

plural of sine / (rare) pair of sixes of dice

plural of SINE

Dated form of Xining.

(trigonometry) The ratio of the side of a right-angled triangle opposite to a specified angle to the hypotenuse; when expressed as a real number between 0 and 1, it defines the sine of the angle.

plural of sine wave

Without specifying a date (for a future event); indefinitely.

(trigonometry, signal processing) A periodically oscillating waveform as described by the sine function, possibly multiplied by some amplitude, shifted by some phase, and translated by an additive constant.

(mathematics) A hyperbolic function that is the analogue of the sine function for hyperbolic spaces, taking in a hyperbolic angle as an argument and returning the y-coordinate for the corresponding point on the unit hyperbola. It is written in symbol sinh and can be represented as: sinh (x)= tfrac 1 2(eˣ-e⁻ˣ)