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[mass noun] A male sex hormone which is the active form of testosterone, formed from testosterone in bodily tissue.
- ‘In a number of target tissues, testosterone can be converted to dihydrotestosterone.’
- ‘It also turns the hormone testosterone into dihydrotestosterone, which effects male sexual characteristics.’
- ‘These receptors attract the male hormone, dihydrotestosterone, which flows in the blood stream and as a result starts the hair-loss process.’
- ‘In the male some tissues are responsive to dihydrotestosterone rather than testosterone itself, and so a deficiency of the enzyme catalyzing this conversion produces the appearance of testosterone deficiency.’
- ‘Another drug, finasteride, interferes with the conversion of testosterone to dihydrotestosterone, a hormone that stimulates the prostate to grow.’
1950s: from dihydro- (in the sense ‘containing two hydrogen atoms in the molecule’) + testosterone.
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