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Definition of Pelvic diaphragm
1. Noun. (anatomy) The pelvic diaphragm is composed of muscles that separate the pelvic cavity above from the perineal region below. Also called the pelvic floor. ¹
¹ Source: wiktionary.com
Medical Definition of Pelvic diaphragm
1. Diaphragm of pelvis, the paired levator ani and coccygeus muscles together with the fascia above and below them. Synonym: diaphragma pelvis. (05 Mar 2000)