arccosine

noun
arc·co·sine | \ (ˌ)är(k)-ˈkō-ˌsīn \

Definition of arccosine 

: the inverse function of the cosine if y is the cosine of θ, then θ is the arccosine of y abbreviation arccos

First Known Use of arccosine

circa 1884, in the meaning defined above

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Dictionary Entries near arccosine

arc chute

arccos

arc cosecant

arccosine

arccot

arc cotangent

arccsc

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Time Traveler for arccosine

The first known use of arccosine was circa 1884

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