双曲余割 shuāngqūyúgē hyperbolic cosecant Origin Definitions Defs Strokes Stroke Words Sentences Sents 双曲 雙曲 shuāngqū hyperbolic relating to a hyperbola or hyperbolic functions余割 餘割 yúgē cosecant (mathematics) cosecant; the ratio of the length of the hypotenuse to the length of the opposite side in a right-angled triangle