arrhenoblastoma

noun
ar·rhe·no·blas·to·ma | \ ˌar-ə-ˌnō-ˌbla-ˈstō-mə , ə-ˌrē-ˌnō- \
plural arrhenoblastomas also arrhenoblastomata\-mət-ə \

Medical Definition of arrhenoblastoma 

: a sometimes malignant tumor of the ovary that by the secretion of male hormone induces development of secondary male characteristics — compare gynandroblastoma

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occurring twice a year or every two years

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