polyorchidism

noun
poly·​or·​chi·​dism | \ ˌpäl-ē-ˈȯr-kə-ˌdiz-əm How to pronounce polyorchidism (audio) \
variants: also polyorchism \ -​ˌkiz-​əm How to pronounce polyorchism (audio) \

Medical Definition of polyorchidism

: a condition of having more than two testes