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Definition of Xyy
1. Noun. (genetics) abnormal complement of sex hormones in a male who has two Y chromosomes.
Lexicographical Neighbors of Xyy
XXV XXVI XXVII XXVIII XXX female XXXed XXXing XXXs XXY XXY-syndrome | XXY male XX male XYY XYY male XYZ X Prize X body X chromosomes X disease X disease of cattle | X factor X factors X inactivation X linked disease X mark |