Definition of dihydrotestosterone in English:



mass nounBiochemistry
  • A male sex hormone which is the active form of testosterone, formed from testosterone in bodily tissue.

    • ‘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.’
    • ‘In a number of target tissues, testosterone can be converted to dihydrotestosterone.’
    • ‘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.