(mez″o-) (me″zo-rek´tәm) the fold of peritoneum connecting the upper portion of the rectum with the sacrum. Found on http://www.encyclo.co.uk/local/21001
Mes`o·rec'tum noun [ Meso- + rectum .] (Anat.) The fold of peritoneum, or mesentery, attached to the rectum. -- Mes`o*rec'tal adjective Found on http://www.encyclo.co.uk/webster/M/53