adjective
referring to the anus
anal canal = passage leading from the rectum to the anus
anal fissure = crack in the mucous membrane of the wall of the anal canal
anal fistula or fistula in ano = fistula which develops between the rectum and the outside of the body after an abscess near the anus
anal sphincter = strong ring of muscle which closes the anus
anal triangle or rectal triangle = posterior part of the perineum