arc sine
noun Trigonometry.
the angle, measured in radians, that has a sine equal to a given number. Abbreviation: arc sin, arcsin; Symbol: sin−1
Also called
inverse sine.
Origin of arc sine
First recorded in 1905–10
Words nearby arc sine
arc light,
arc of lowitz,
arc sec,
arc secant,
arc second,
arc sine,
arc spectrum,
arc tan,
arc tangent,
arc welding,
arc, d'
British Dictionary definitions for arcsin
arcsin
/ (ˈɑːkˌsaɪn) maths /
abbreviation for
arcsine: the function the value of which for a given argument between –1 and 1 is the angle in radians (between –π/2 and π/2), the sine of which is that argument: the inverse of the sine function
Scientific definitions for arcsin
arc sine
The inverse of the sine function.