Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun arc_sine
1 sense of arc sine
Sense 1
arc sine, arcsine, arcsin, inverse sine -- (the inverse function of the sine; the angle that has a sine equal to a given number)
=> trigonometric function, circular function -- (function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle)