methyltestosterone UK /ˌmiː.θʌɪl.tɛˈstɒ.stə.ɹəʊn/US /ˌmɛθ.əl.tɛˈstɑ.stəˌɹoʊn/ noun1 •An anabolic steroid that is a methyl derivative of testosterone C₂₀H₃₀O₂, used to treat testosterone deficiency in men and breast cancer and menopause in women.Tamoxifen, used to treat breast cancer, will be offered for $9 for a 30-day supply, as will combination estrogen/methyltestosterone tablets, prescribed for menopause and hormone deficiency. — 2008
