Anorectal refers to the region of the anus and the rectum. It is used as a medical adjective referring to e.g.
Anorectal abscess Anorectal angle Anorectal anomalies Anorectal atresia Anorectal canal Anorectal disorder Anorectal fistula Anorectal junction Anorectal manometry Anorectal sampling reflex Anorectal varices Anorectal wart