WordReference Random House Unabridged Dictionary of American English © 2016
versed′ sine′, [Trig.]
- Mathematicsone minus the cosine of a given angle or arc. Abbr.: vers. Also called versine, versin.
Collins Concise English Dictionary © HarperCollins Publishers::
versed sine n
Etymology: 16th Century: from New Latin sinus versus, from sine1 + versus turned, from vertere to turn
- a trigonometric function equal to one minus the cosine of the specified angle
'versed sine' also found in these entries: