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testosterone tes·tos·ter·one (těs-tŏs'tə-rōn')
A steroid hormone and the most potent naturally occurring androgen that is formed by the interstitial cells of the testes, and possibly by the ovary and adrenal cortex, may be produced in nonglandular tissues from precursors such as androstenedione, and is used in the treatment of hypogonadism, cryptorchism, carcinomas, and menorrhagia.
A steroid hormone that is the most potent naturally occurring androgen and that regulates the development of the male reproductive system and male secondary sex characteristics. Testosterone is produced mainly in the testes and is also used as a drug in the treatment of certain medical disorders. Chemical formula: C19H28O2.