noun
the inverse function of the sine; the angle that has a sine equal to a given number
• Syn: ↑arc sine, ↑arcsine, ↑inverse sine
• Hypernyms: ↑trigonometric function, ↑circular function
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arcsin /ärk-sinˈ/
abbrev
Arc sine (see ↑arc)
Useful english dictionary. 2012.