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arc secant


noun Trigonometry.

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

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Nearby words

arc furnace, arc lamp, arc light, arc of lowitz, arc sec, arc secant, arc second, arc sine, arc spectrum, arc tan, arc tangent

Origin of arc secant

First recorded in 1905–10
Also called inverse secant.
Dictionary.com 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.