mesovarium

noun
mes·​ovar·​i·​um | \ ˌmez-ō-ˈvar-ē-əm, ˌmēz-, ˌmēs-, ˌmes- How to pronounce mesovarium (audio) \
plural mesovaria\ -​ē-​ə How to pronounce mesovaria (audio) \

Medical Definition of mesovarium

: the mesentery uniting the ovary with the body wall