Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun arccos

1 sense of arccos

Sense 1
arc cosine, arccosine, arccos, inverse cosine -- (the inverse function of the cosine; the angle that has a cosine equal to a given number)
       => trigonometric function, circular function -- (function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle)