mesorchium

noun
me·​sor·​chi·​um | \ mə-ˈzȯr-kē-əm How to pronounce mesorchium (audio) \
plural mesorchia\ -​kē-​ə How to pronounce mesorchia (audio) \

Medical Definition of mesorchium

: the fold of peritoneum that attaches the testis to the dorsal wall in the fetus

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