Noun
1. The fascia at the floor of the rectovesical pouch of the peritoneum, separating the prostate and the base of the urinary bladder from the rectum. (biology-online.org)
2. A membranous partition at the lowest part of the rectovesical pouch. It separates the prostate and urinary bladder from the rectum. It consists of a single fibromuscular structure with several layers that are fused together and covering the seminal vesicles. (wikipedia.org)
Word origin: Named after French anatomist and surgeon Charles-Pierre Denonvilliers.