monorchidism

noun
mon·​or·​chid·​ism | \ -ˌiz-əm How to pronounce monorchidism (audio) \
variants: also monorchism \ mä-​ˈnȯr-​ˌkiz-​əm How to pronounce monorchism (audio) \

Medical Definition of monorchidism

: the quality or state of being monorchid — compare cryptorchidism