ret·​ro·​per·​i·​to·​ne·​um -ˌper-ət-ᵊn-ˈē-əm How to pronounce retroperitoneum (audio)
plural retroperitoneums or retroperitonea -ˈē-ə How to pronounce retroperitoneum (audio)
: the space between the peritoneum and the posterior abdominal wall that contains especially the kidneys and associated structures, the pancreas, and part of the aorta and inferior vena cava

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Cite this Entry

“Retroperitoneum.” Medical Dictionary, Merriam-Webster, Accessed 13 Jun. 2024.

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