arc cosine

A form of arccosine — Any of several single-valued or multivalued functions that are inverses of the cosine function.

Similar
arccosinearccosinverse cosine
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Meanings

nounarc cosine (plural arc cosines)

plural arc cosines

  1. alternativeAlternative form of arccosine.

Synonyms & antonyms

nounthe inverse function of the cosine; the angle that has a cosine equal to a given number

Similar
arccosinearccosinverse cosine
Broader
trigonometric functioncircular function
Also see
arccosineinverse cosine

Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry
APA

arc cosine. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/arc%20cosine

MLA

“arc cosine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/arc%20cosine. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “arc cosine,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/arc%20cosine.

Source: arc cosine on Wiktionary, CC BY-SA 4.0.