arc sine

  1. the angle, measured in radians, that has a sine equal to a given number. Abbreviation: arc sin, arcsin; Symbol: sin−1

Origin of arc sine

First recorded in 1905–10
  • Also called inverse sine.

Words Nearby arc sine Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Scientific definitions for arc sine

arc sine

  1. The inverse of the sine function.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.