n :  a white or whitish crystalline ester C₂₂H₃₂O₃ of testosterone that is used esp. in the treatment of postpubertal cryptorchidism, symptoms of the male climacteric, palliation of inoperable breast cancer, and the prevention of postpartum pain and breast engorgement, that is usu. administered intramuscularly, and that has a half-life of about four hours .
 
 
 
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