arc secant

noun Trigonometry.

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

Origin of arc secant

First recorded in 1905–10
Also called inverse secant. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for arc secant

arc secant

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