- one minus the cosine of a given angle or arc. Abbreviation: vers.
Origin of versed sine
First recorded in 1590–1600
Also called versine, versin.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a trigonometric function equal to one minus the cosine of the specified angleAbbreviation: vers
C16: from New Latin sinus versus, from sine 1 + versus turned, from vertere to turn