arcsine

noun
arc·​sine | \ (ˌ)ärk-ˈsīn How to pronounce arcsine (audio) \
variants: or less commonly arc sine
plural arcsines also arc sines

Definition of arcsine

: the inverse function of the sine if y is the sine of θ, then θ is the arcsine of y abbreviation arcsin

First Known Use of arcsine

circa 1889, in the meaning defined above

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The first known use of arcsine was circa 1889

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Cite this Entry

“Arcsine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/arcsine. Accessed 7 Jul. 2020.

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