What is the definition of arccosine ? the inverse function of the cosine; the angle that has a cosine equal to a given number

What words begin like arccosine ? arc arca arcade arcaded arcadia arcadian arcadian hind arcadianism arcadianly arcadic

What words end like arccosine ? aborigine ab origine academic discipline acanthine acarine acauline accipitrine accommodation line acetanisidine acetophenetidine