The Collaborative International Dictionary
Ischiorectal
Ischiorectal \Is`chi*o*rec"tal\, a. [Ischium + rectal.] (Anat.) Of or pertaining to the region between the rectum and ishial tuberosity.
Wiktionary
ischiorectal
a. (context anatomy English) Of or pertaining to the region between the rectum and the ischial tuberosity.