coversed sine

[koh-vurst]

Origin of coversed sine

First recorded in 1700–10
Also called co·ver·sine [koh-ver-sahyn, koh-vur-sahyn] /ˈkoʊ vərˌsaɪn, koʊˈvɜr saɪn/. versed cosine.
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British Dictionary definitions for coversed sine

coversed sine

noun obsolete
  1. a trigonometric function equal to one minus the sine of the specified angleAbbreviation: covers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012